English
Noun
shit-eating grin
#idiom colloquial vulgar 1) A smug, self-confident expression indicating a ridiculously arrogant sureness. 2) a look of extreme satisfaction on someone's face that is annoying to other people who are less happy.
Quotations
"What I'm doing right now—lounging around, wearing a shit-eating grin—is the most irresponsible, despicable, reprehensible thing I could possibly do." 1
"Best of all, the novel's American president, a braying megalomaniac, is clearly inspired by the photo on Kelly's studio wall: The president's shit-eating grin when he sees his first giant robot warrior is itself worth the price of admission." 2
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