No Stupid Questions @lemmy.world scarabic @lemmy.world 2y ago Why is a “shit-eating grin” called that?
According to urbandictionary, if someone is shit eating, it means "To be exceptionally smug, full of oneself."I guess, it's a type of grin that makes someone assume the person is like that.
The are so into and proud of themselves that if they were to shit right now, they would eat it.