bum, crumb, dirty dog, git, lowlife, rat, rotter, scum bag, skunk, so-and-so, stinker, stinkpot
barf, vomit, vomitus
barf, be sick, cast, CAT, chuck, disgorge, honk, purge, regorge, regurgitate, retch, sick, spew, spue, throw up, upchuck, vomit, vomit up