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Synonyms for Spue (same or very similar meaning)

WordNet sense 1 (expel or eject (saliva or phlegm or sputum) from the mouth):
spew, spit, ptyalise, ptyalize

WordNet sense 2 (eject the contents of the stomach through the mouth):
barf, cast, cat, chuck, disgorge, honk, puke, purge, regurgitate, retch, sick, upchuck, vomit, regorge, be sick, throw up, vomit up

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