to fold or plait in regular undulation in such a way that the material will retain the shape intended; to give a wavy appearance to; as, to crimp the border of a cap; to crimp a ruffle.  cf. crisp.-to pinch and hold; to seize.-to entrap into the military or naval service; as, to crimp seamen.-to cause to contract, or to render more crisp, as the flesh of a fish, by gashing it, when living, with a knife; as, to crimp skate, etc.-easily crumbled; friable; brittle.-weak; inconsistent; contradictory.-a coal broker.-one who decoys or entraps men into the military or naval service.-a keeper of a low lodging house where sailors and emigrants are entrapped and fleeced.-hair which has been crimped; -- usually in pl.-a game at cards.