A game where a group of guys each get a cup and fill it with ice cream, preferably chocolate. Then while watching 2 girls 1 cup, for every moment that makes you feel like you have to puke, eat some ice cream. If you do puke, you must aim into the cup. The winner is the one who can last the entire video with the least amount ice cream/vomit in the cup.
Dude1: I was playing The 2 girls 1 cup game, and i only puked twice.

Dude2: Holy shit man, last time i played, i couldnt even last half the video.
by Dr.Strangelove2 August 11, 2009
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When a group of men masturbate in a cup and the last person to cum is forced to drink the cup of cum
Person A: We are playing the cup game, are you gonna play?

Person B: Of course! I love the cup game
by Cum in the cup January 20, 2018
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