click one's tongue

Verb

 * 1) To make a clicking noise with a sucking action of the tongue, to express disapproval or impatience, urge on a horse, etc.

Usage notes
The noise made to express disapproval or impatience generally corresponds to the interjections tut (UK) or tsk (US) (representing a sound made with the tip of the tongue against the teeth); the noise made to urge on a horse corresponds to the interjection tchick (representing a sound made with the one side of the tongue against the teeth).