UPCHUCK
vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, retch, puke, barf, spew, spue, chuck, upchuck, honk, regurgitate, throw up
(verb) eject the contents of the stomach through the mouth; “After drinking too much, the students vomited”; “He purged continuously”; “The patient regurgitated the food we gave him last night”
Source: WordNet® 3.1
Etymology
Noun
upchuck (uncountable)
(informal) Vomit.
Verb
upchuck (third-person singular simple present upchucks, present participle upchucking, simple past and past participle upchucked)
(informal) To vomit.
Synonyms
• chuck up (UK)
Anagrams
• chuck up
Source: Wiktionary