flake
noun
°A loose filmy mass or a thin chiplike layer of anything; a film; flock; lamina; layer; scale; as, a flake of snow, paint, or fish.
°A prehistoric tool chipped out of stone.
verb
°To break or chip off in a flake.
°(colloquial) To prove unreliable or impractical; to abandon or desert, to fail to follow through.