tut >> tʌtˈtʌt
Definition: [exclamation] used to express disapproval or annoyance.
Example: tut-tut, Robin, you disappoint me
Definition: [noun] an exclamation of disapproval or annoyance.
Example: tut-tuts of disapproval
Definition: [verb] make an exclamation expressing disapproval or annoyance.
Example: Aunt Mary tut-tutted at all the goings-on