To grin in mockery; make a wry face in contempt; hence, to gibe; sneer: as, to fleer and flout.To grin with an air of civility; leer.To mock; jeer at.n. Derision or mockery, expressed by words or looks.n. A grin of civility; a leer.n. One who flees.n. A dialectal (Scotch) variant of floor.