From Longman Dictionary of Contemporary Englishbarfbarf /bɑːf $ bɑːrf/ verb [intransitive] American English informal MISICK/VOMITto vomit —barf noun [uncountable]→ See Verb table
Examples from the Corpus
barf• At one point there were six of us barfing into the same hopper.Origin barf (1900-2000) Probably from the sound 