shit-eating grin

(redirected from a shit-eating grin)

shit-eating grin

rude slang A facial expression denoting arrogance, smugness, or self-satisfaction. Primarily heard in US. I really wanted to wipe that shit-eating grin off his face after he won the poker game.
See also: grin
References in periodicals archive ?
Randy was wearing a t-shirt denoting Asshole University enrollment and a shit-eating grin.