An idiot grin by a dumb black kid who didn't know enough to get out of the way.
Then his face grew slack, subsiding into an idiot grin.
But there he was, red hair, idiot grin, big as life- bigger than life!
Her idiot grin was a mask: she inspected him from behind it.
Want me to rake that idiot grin off your face?
Right on, doll, said David, with an almost idiot grin of happiness spreading over his face.
And why did he have that idiot grin smeared across his face?
Then the gleam reappeared, and a moment later the idiot grin followed.
An idiot grin grew and blossomed across his face as he stared at the second lump.
He felt his mouth pulling into another idiot grin.