im going to throw up Share definition Flag The phrase you say when your lunch is coming back to say hello. Also helpful to get through large crowds fast because no-one wants to see you barf Drama girl: Oh ew I just had some bad food and IM GOING TO THROW UP!!!! Crowd: (silently parts) im going to throw up by Kittys meow December 11, 2013 Get the im going to throw up mug.