tutster means one who tuts (makes a tut sound in disapproval). Lexicurio rates it Sui generis — a strength score of 100 out of 100.
Etymology
From tut + -ster.
noun
- One who tuts (makes a tut sound in disapproval).“He was […] a lean, grey badger of a man, business-like and keen-eyed, the direct opposite of the "tutster" who had annoyed Parker the evening before.”