Definitions by narstytoanexremedegree

1guy1cup 

a video in which a man sticks a cup up his butt and then it breaks, causing bleeding. The name is a spoof on 2girls1cup.

"dude, have u seen 1guy1cup?"

"yea, im definitely straight now"

1guy1cup by narstytoanexremedegree January 1, 2009