/klæk/
noun
An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a sound midway between a click and a clunk.Anything that causes a clacking noise, such as the clapper of a mill, or a clack valve.Chatter; prattle.The tongue.verb
To make a sudden, sharp noise, or succession of noises; to click.To cause to make a sudden, sharp noise, or succession of noises; to click.To chatter or babble; to utter rapidly without consideration.To cut the sheep's mark off (wool), to make the wool weigh less and thus yield less duty.