v or n : To complain in a nagging or whining way A person who kvetches, is a kvetch The kvetch can never be satisfied; for the kvetch, nothing ever goes right
[ 'kvech, 'kfech ] (intransitive verb.) circa 1952. From Yiddish קוועטשן (kvetshn), from German Quetsche ‘crusher, presser’, from quetschen ‘crush, press’.