Diet Coke and Mentos Challenge 

A challenge where you put a bunch of mentos in your mouth and trying to consume a 2 liter bottle of diet coke spilling as little as possible. The chemical reaction produced by the coke interacting with the mentos causes it to burst out causing people to spill coke while consuming it.

"Chester and I tried the Diet Coke and Mentos Challenge last night, man it hard to chug down that Diet coke tho!"

Diet Coke and Mentos Challenge by Chris's_Zen May 5, 2013

Tri-lakes Challenge 

The Tri-lakes challenge is a town competition/quirk that takes place in Monument, CO and Palmer Lake, CO. Starting and ending inside of Taco Bell , participants must be fully submerged in each of the three lakes: Woodmoor Lake, Monument Lake, and Palmer Lake. The challenge was first popularized by local heroes, the "Sausage Fest."

"Dude! What's your best time for the Tri-lakes Challenge?"

"36 minutes! Me and the squad are going for the record tonight though! "

Tri-lakes Challenge by DankMeemer420 May 24, 2016

Red Velvet Challenge 

When you eat some cake, cookies or other pastries flavored with red velvet and then after digestion have to determine if you’re expieriencing anal bleeding or it’s just the red velvet. The time between consumption and expulsion usually prompts a momentary period of panic during a shit before you remember your poo is red because of something you ate rather than a serious hemorrhage.

This whole wedding party gonna be taking the Red Velvet Challenge in about 18-24 hrs.

It’s always funny taking the Red Velvet Challenge because I always forget until I wipe and think my asshole is bleeding. After about three seconds of panic I remember what I ate, chuckle, and think “damn, tricked myself again!”

Grandma called the ambulance last night cause she thought she prolapsed her rectum again. Little does she know my baking made her a contestant in the red velvet challenge

Red Velvet Challenge by But Sects September 3, 2023

The 3 Heart Challenge

To beat the game of Zelda with only the three hearts you have at the beginning. This means not picking up any of the heart pieces at the end of each temple and not doing any other thing that would gain you heart pieces throughout the game.

"I pretty much owned The 3 Heart Challenge. I must say... not picking up that first heart piece was truly a test of will-power... knowing that I would have to fight Ganon with only 3 hearts!"

The 3 Heart Challenge by Brett Goodman December 12, 2006

The Marmion Challenge 

The marmion challenge is when students, particularly young men refrain from self-abuse, or "masterbation" for the 40 days of lent, and if they fail they simply say, "I'm out."

Guy 1:"Hahah, are you doin the marmion challenge?"
Guy 2:"yea, 3 days in and goin strong."
Guy 3:"I'm out..."

The Marmion Challenge by hyfr12 May 16, 2012

keke challenge 

See Ghost riding.

The keke challenge is just ghost riding.

keke challenge by GAWII July 31, 2018

Salt and Ice Challenge 

A challenge where you and some friends pour salt to a body part (supposedly the back of your hand) and then adding ice to that area and seeing who can last the longest. Adding ice to the salt on a body part causes a frostbite experience and is really dangerous and stupid to do.

Dude, Brandon and I took the salt and ice challenge yesterday, and Brandon ended up burning himself but won it.

Salt and Ice Challenge by Chris's_Zen May 4, 2013