butt end noun 3verb 1forms 3 noun3 •The thick end of something.With the butt end of an admonitory pencil he indicated the unopened trap. — 1934 •The bread heel. •The windowless end of a building. verb1 •To jab (a player) with the knob of a hockey stick (incurring a penalty). formsbutt ended · butt ending · butt ends