kvetch I. \ˈkvech, ˈkfe-, kəˈvech\intransitive verb (-ed/-ing/-es-s) Etymology: Yiddish kvetshn, literally, to squeeze, pinch, from Middle High German quetschen — more at quetsch : to complain habitually : gripe < kvetches constantly about being 33 years old — H.F.Waters > • kvetch·er\-ər\noun II. \"\noun (-es) 1.: an habitual complainer 2.: complaint