When Tony realized the girl he met over the internet looked nothing like the Cindy Crawford picture she'd sent him and was actually totally wrecked, he realized he had no choice but to tell her he had a bad case of the beer shits and sneak out the bathroom window.
To ruin someones game or cause someone to lose status in front of their peers
Johnny talking to his hot neighbor: He baby, whatcha doing tonight?
Johnny's Grandma calling from the house: Johnny, come help gram-gram with her colostomy bag.
Me: Damn, Johnny just got wrecked!