動詞 retch:

1. eject the contents of the stomach through the mouth
   同義詞：vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, retch, puke, barf, spew, spue, chuck, upchuck, honk, regurgitate, throw up
2. make an unsuccessful effort to vomit; strain to vomit
   同義詞：gag, heave, retch