These pranks are so good, it will make you want to do it.
Bro Code Man

“I called my drunk friend pretending to be a girl he liked, whispering in order than he wouldn’t catch on, giving some excuse, he’s not the sharpest. Spoke all manner of filth, and encouraged him to visit her. I realize this sounds weird and rapey, but I know them both well and knew that nothing dodgy would happen. He text me telling me how he excited he was to be getting laid, I was in stitches. A couple of hours later I’m getting worried, he definitely went to her place, he was so keen. Anyway, I call him the next morning, he’s in her bed, they actually did it! He’d got laid because of my prank, result.” Source
Your Mic Is On

“I told my younger brother that if he continually drank water he would be able to pee continuously. He, of course, believed me and started guzzling water. That same morning he also decided to call into the radio station (to win a prize or something) and eventually got through. Because of all the water he had been drinking he suddenly had to pee. Not realizing that the radio hosts would be able to hear him he went to the bathroom to relieve himself. As soon as his stream started the hosts asked what room he was in, to which he responded ‘the bathroom’ and they started laughing because they could clearly hear him peeing. They played that clip on their promo for weeks.” Source
Horrifying

“I pranked my mom. One day I figured out our phone had a feature that let you talk into your phone an they could hear it in the base. So I waited till it was late and my mom was watching T.V. I then made my voice deeper and called her name. It got very quiet so I used the scariest voice I could and called her name again. Next thing I know my mom bolts out of the room in her night gown out the front door. It was hysterical until I realized she left her 4 kids behind. My mom ain’t sh*t for that…” Source
Don’t Waste The Air

“I told my younger brother that he was insane for wasting all the air in the bags of his chips and that I couldn’t believe he opened the bag so fast wasting all the air. For about 3-4 years he would open the corner of the bag and suck the air out of the bag before opening it. This was from ages 8-12 by the way.” Source
Engineer Prank

“My father’s best-ever prank (at least by his own description) occurred during his college days, when he lived in a dormitory reserved for engineering students. There was one tenant who didn’t quite fit in with everyone else, as evidenced by the way that he would come home drunk every night, stagger through the halls, and scream profanities at anyone unlucky enough to encounter him. He was also, it was discovered, the only non-engineering student in residence, and nobody was entirely sure how he had come to be housed in the building. One way or another, he was a nuisance. So, on April Fools’ Day, my father and his friends decided to teach that guy a lesson. With the cooperation of the entire floor, they strung a series of speakers together in sequence, so that adjusting the L/R balance on a stereo unit would make the sound move up and down the length of the building. Then, they removed all of the lights in the hallway, leaving only the sinister red glow of the exit sign as illumination. Finally, they acquired a novelty record, which they queued to play a very special sound effect. When the drunkard returned home that evening, he was greeted by a long, dark hallway and an ominous, eerie silence. According to my father, the guy mumbled to himself in confusion for a moment before beginning to stumble in the direction of his room. Then, from in the distance, there came a barely-audible sound. As it increased in volume, it became recognizable as a train, blowing its whistle as if in warning of some dire calamity. The inebriate faltered in his course, wondering aloud (and with obvious concern) what exactly was going on. The sound of the train grew further in volume, to almost deafening levels. The drunk – now visibly panicking – began to shout for help. Finally, just as it sounded like the train was bearing down… my father’s friend came running around the corner with a flashlight taped to his head. Legend has it that the drunkard awoke in the hallway the next morning, unaware of why he had soiled himself, but intensely suspicious of the toy locomotive that was clutched in his hand.”Source
That’s Cruel

“When I was 13, I invited a new friend (we’ll call her Liz) to swim in my family’s pool after school. I have a sister 2 years younger than me, and I warned my friend that my little sister was mentally handicapped, and that she’d get startled easily by strangers so she had to speak quietly and make no sudden movements to avoid my sister having an ‘episode’. Of course, my sister is a normal functioning person, but Liz was very sweet and gentle with her. After they met, my sister asked me in private if everything was okay because Liz was acting strange and whispering at her. I told my sister that Liz was mentally handicapped and to be really careful around her because sudden movements and loud noises scared her. My sister started being very careful around Liz (whispering, talking slowly, etc.), and they both went on thinking that the other was special needs until Liz spoke with another friend of mine weeks later about my ‘special sister’.” Source
Liquid Nitrogen Is The Best

“My favorite prank of my life involved getting my hands on a few gallons of liquid nitrogen. I was in college and living on the second floor of an apartment building on one of the town’s busier streets. We poured the liquid nitrogen into a 2 gallon pot and the squirted in a bunch of ketchup and mustard. Using tongs we were able to remove the ketchup and mustard frisbees from the pot. With our condiment frisbees held by tongs, I would hang out the window and yell to people, ‘Hey catch the frisbee.’ Then I would throw them a frisbee. If they caught it, it would melt immediately and cover their hands in the sweet sweet ketchup and mustard.” Source
Classic

“On April first I went to one of my friends and said ‘Hey, you got some mustard on your shirt.’ And when he looked down at his shirt I stabbed him with a mustard bottle. Good times.” Source
Ms. Gullible

“Been waiting for a chance to tell this one for a while now. During college, my friends and I had a classmate who was gullible beyond belief. We’ll call her Fiona O’Rourke. She would believe anything you said with a straight face. Anyway, at one point she borrowed my roommate’s laptop to do some work, and forgot to log out of her email before she returned it. Mistake. My roommate began using her email account, to send her foreboding messages. From herself. From the future. And she bought it. Well, mostly. She was suspicious, at least. Emails from the future weren’t a thing, right? Right? My roommate and I assured her that it could be done. We’d read a website about it recently, it was really cool, we’d have to show her, come to the library in an hour and we’ll show you. During the next hour I got on wikipedia and cobbled together a completely bullsh*t article on Reverse Temporal Messaging, complete with elaborate equations stolen from the Black Hole wiki page. To top it off, one of the article’s final references was to the woman who had discovered Reverse Temporal Messaging, 60 years from now. Dr. Fiona O’Rourke. Fiona had never heard of wikipedia, and the color drained from her face as she read the article. Her world collapsed as she read her own name at the end. ‘Fiona O’Rourke? So I’ll never get married?’ We lost it.'” Source
Underclassmen Are So Naive

“Classic high school senior prank: Walk around school selling elevator passes to new freshmen. There are no elevators.” Source
Boys vs. Girls

“Guys in the high school musical were doing the classic ‘condom-filled-with-mayonnaise’ bit and throwing it over the dressing room wall into the women’s dressing room after making a bunch of obnoxious sex noises. We were all really getting sick of it, so I concocted a plan with a friend (who bailed at the last minute). I grabbed one of my maxi pads and bought a bottle of red food coloring. Combined the two and threw it over the wall into the men’s dressing room. Their screams still echo sweetly through my mind.” Source
Candle Maker

“Buddy of mine makes candles and blends scents and I had him help me for one. I was living with a roommate and his girlfriend at the time and she loved candles so I went to my buddy and we made a nice big vanilla scented one. Right in the middle we injected a couple puddles of this liquid a_* mix that he made. Soon after it was made I moved out and left the candle as a ‘gift’. About 2 weeks later I called the ex roommate about something unrelated. He mentioned he was waiting for the plumbers to come by cause the whole house just reeked of sh_t. I had sorta forgotten about the candle by this point and confessed so he wouldn’t have to pay the plumbers for no reason. Even went over the next day to help air the place out and it was awful. I’ve bought them a big candle every year for xmas though. 8 years and they haven’t lit one yet.” Source
Radio Contest Prank

“I once convinced my sister-in-law to call in to a radio contest for free water park tickets… only there was no give-away, and the number I gave her wasn’t a radio station. Things went farther than I intended. It started out with her asking me the cheapest way to get tickets to the local water park. Why did she ask me? She was hoping I would volunteer to buy them for her, but if she thought she would get them that easily, she had another thing coming. Instead, I told her that the radio station was having a give-away. All she had to do was wait until the announcement and call in. The 10th person to call and say, ‘I looooooooooooove X101’ (name changed to protect the innocent) would win two free tickets. I knew she was going to be driving with her daughter and two sisters (my wife among them) later that day and that the car did not have a working radio station. I told her I would listen and let her know when it was time to call. In the mean time, my son and I prepared for the prank. After they had been on the road a few minutes, I called and told her to hurry and call the station. I gave her my son’s new cell number, which she didn’t know and told her to hurry. When his phone rang, I answered and told her to hold. Instead of Muzak, she got to listen to a Youtube video of ‘Don’t Stop Believing’ I had cued in preparation for the call. I thought this would be enough to clue her in, but she didn’t notice. So, next, I told my son to sing along with it in his most earnest Steve Perry impersonation. She still didn’t catch on. At this point, I didn’t know what to do, so I pretended to pick up the line in my cheesiest DJ voice and told her, ‘Congratulations! You’re the tenth caller. What’s your favorite radio station?’ She answered, ‘I looooooooooooove X101!’ … _crickets ‘I’m sorry, ma’am. This is Y99.’ _click. I hadn’t thought this through and did not realize how upset she would be. She called me on my phone crying and humiliated. So, did I let her off the hook? Nope. I told her that they often messed with callers to this particular station. I assured her they would probably call her back and let her know it was a joke. So, a few minutes later, I called again with my cheesy DJ voice and told her to pick up her tickets at Costco and reminded her to make sure to tell the customer service desk how much she loves X101. She doesn’t have a Costco membership, so when she told me she had won, I agreed to take her the next day to pick up her free tickets. I really wanted to see what would happen when she walked up to the customer service desk and told the person, ‘I loooooooooooove X101!’ but I didn’t have the heart to let her do that. Instead, I let her walk a few paces ahead of me in the parking lot and called her from my son’s cell. I told her I was calling to make sure she hadn’t forgotten to pick up her tickets. Unbelievably, she still didn’t get it. I had to walk into her view and speak to her through the phone in full sight before she realized what had happened. She punched me in the shoulder, and I took her inside and bought her the tickets. I have no idea why she was such an easy mark for this prank. She’s usually pretty sharp. I guess the need for water park tickets overcame her natural suspicion.” Source
The Never Ending Toothpaste

“A gentle one on my trusting, loving wife: when her favorite toothpaste (mailed from her home country) was running low and she had a fresh tube in a drawer, on standby, I put the two tubes mouth-to-mouth and squeezed just enough, a day’s supply, from the fresh tube into the old tube. I did this every day. Two weeks went by with her expecting to use up the last of the old tube each time she brushed, only to find just enough for one more cleaning. The pleasure of breaking in a new tube just always postponed. She found out when we were brushing our teeth together one night. She just stared at her toothpaste tube, and said ‘this is weird…’ I couldn’t keep a straight face, and the game was up. She brings it up, jokingly, when we have a ‘trust me’ situation, and the honeymoon continues.” Source
That’s A Healthy Relationship

“My husband and I were doing this thing for a while where we would try to ‘get’ one another with a sneaky middle finger. You know, ‘oh, I have something for you.’ And you pull a bird out if your pocket. Sh_t like that. He was also on this trip where he liked to pants me randomly. One day I was driving home from work and saw a pair of underwear with a middle finger on the butt. I bought a pair, drove home, ran and changed into them before he saw, and put my jeans back on. I start doing the dishes hoping for the best. He walks up and, f*_k yeah, he pulls my pants down and is hauling off to spank me and is stopped dead in his tracks, speechless. I won and both games ended that night.” Source