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1. verb To complain, gripe, or express displeasure, especially in a self-absorbed or incessant manner. Would you please stop quetching about every little problem that crops up? Just learn how to deal with these issues, for God's sake. You'd swear Marty was carrying the weight of the world with the way he quetches.
2. noun Someone given to making such complaints. You're just a tiresome old quetch, you know that?
kvetchand quetch (kvɛtʃ and kʍɛtʃ)
1. in. to complain. (From German quetschen, “to squeeze,” via Yiddish.) Quit your kvetching!
2. n. a complainer. What a kvetch you are!