tsk definition
Tsk is a sound made by quickly releasing the tongue from the top of the mouth to express disapproval or criticism. An example of tsk is the sound a mother would make while shaking her finger at a child who's done something wrong. (a sound) used to express disapproval, genuine or mock sympathy, etc.: a click, or sucking sound, made by touching the tongue to the hard palate and rapidly withdrawing it.