used in writing to represent the sound made to show you disapprove of something, or a word said twice in a humorous way to suggest disapproval

Tut, it's raining - I'm going to get soaked. 啧啧，下雨了——我要淋成落汤鸡了。

You're late again - tut tut! 你又迟到了——啧啧！

to make a disapproving sound or speak in a disapproving way

He walked off, tutting to himself. 他走开了，口中啧啧不已。

[ + speech ] "Still not out of bed?" she tutted (= said in a disapproving way). “还没起床？”她啧啧道。