I am inclined to think that 'to suck your teeth' is a possible description for the sound 'tsk'. Is there any good source to support (or dismiss) my assumption?
By 'tsk' I mean the onomatopoeia for a dental click sound that is used by English speakers to signify impatience, disapproval or reluctance.
For those who think I am asking "why 'tsk' is written for the sound of disapproval", hence is a duplicate of a question asked some years ago, let me say that I am aware of that question, and no, that is not what I am asking.