n. & v.
n. 1 a a line in paper etc. caused by folding. b a fold or wrinkle. 2 Cricket a line marking the position of the bowler or batsman (see POPPING-CREASE, bowling-crease). 3 an area near the goal in ice hockey or lacrosse into which the puck or the ball must precede the players.
v. 1 tr. make creases in (material). 2 intr. become creased (linen creases badly). 3 tr. & intr. sl. (often foll. by up) make or become incapable through laughter. 4 tr. esp. US sl. a tire out. b stun or kill.
[ earlier creast = CREST ridge in material ]