What a guy says when he likes a girl back but he's too much of a pussy to do anything about it
Sam liked E, but instead of manning up and getting with her he said he just wanted something fun and impromptu
An expression meaning "to vomit."
Guy 1: Hey, man, are you okay? I saw you head for the bushes earlier.
Guy 2: Urgh, it was so gross, I had an impromptu protein party.