The challenge is where two men go into a bathroom stall, then one of the men proceeds to suck the guys dick like a juicy bosco stick. The challenge originated from Williams High School which is the home of the gays.
A challenge created by me, in which you and another person each go on UD and press the random definition button on Urbandictionary.com, you then press any blue highlighted definition, and the chain goes on, definition after definition. The trick however, is not to land on a dirty/sexual/drug-related (depends how you play it) definition, the last one to land on a dirty definition wins. This game can also be played in a group.
Justanothersickfuckonurbandic: Hey guys! Let`s play this game I created, it`s called "The Urban Dictionary Challenge!"
Kevin: Wow, Justanothersickfuckonurbandic, what a great idea! How is it played?
*explains how to play*
Justanothersickfuckonurbandic: I bet $69,420 for whoever wins!
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.