Cramp  —n. 1 painful involuntary muscular contraction. 2 (also cramp-iron) metal bar with bent ends for holding masonry etc. Together. —v. 1 affect with cramp. 2 (often foll. By up) confine narrowly. 3 restrict. 4 fasten with a cramp.  cramp a person's style prevent a person from acting freely or naturally. [low german or dutch]