To strike with a quick, sharp motion; slap; pat, as with the palm of the open hand or some flat object: as, to clap one on the shoulder.Hence To fondle by.patting.To push forcibly; move together; shut hastily: followed by to: as, to clap to the door or gate.To place or put, especially by a hasty or sudden motion: as, to clap the hand to the mouth; to clap spurs to a horse.To strike, knock, or slap together, as the hands, or against the body, as wings, with a sharp, abrupt sound.Hence To manifest approbation of by striking the hands together; applaud by clapping the hands.To utter noisily.To imprison, especially without formality or delay.. To strike or knock, as at a door.To come together suddenly with a sharp noise; close with a bang; slam; clack.To applaud, as by clapping the hands together.To chatter; prattle or prate continually or noisily.To begin or set to work with alacrity and briskness.n. A sudden sharp sound produced by a collision; a bang; a slap; a slam.n. Hence A burst or peal, as of thunder.n. A striking together, as of the hands or of a bird's wings; especially, a striking of the hands together, to express applause.n. A clapping; applause expressed by clapping.n. Noise of any kind, especially idle chatter.n. A sudden blow, motion, or act: generally in the phrase at a clap (which see, below).n. A touch or pat with the open hand: as, he put her off with a kiss and a clap.n. In falconry, the nether part of the beak of a hawk.n. Same as clapper, 1n. Gonorrhea.To infect with venereal poison.