1. (v. i.) To heave or to retch, as in an effort to vomit.

2. (n.) An effort to vomit; queasiness.

barf be nauseated be seasick be sick bring up choke on chuck up disgorge egest feed the fish feel disgust gag heave heave the gorge puke regurgitate reject retch sick up sicken at spew throw up upchuck vomit