turn your nose up at something

turn your nose up at something

or

turn up your nose at something

INFORMAL
COMMON If you turn your nose up at something or turn up your nose at it, you reject it because you think that it is not good enough for you. Hettie will turn her nose up at my cheap and cheerful high-street clothes. University graduates were turning up their noses at business jobs and trying instead to get into university teaching. Note: You often use this expression to show that you disapprove of the person's behaviour because they are being too proud.
See also: nose, something, turn, up

turn your ˈnose up at something

(informal) refuse or reject something because you do not think it is good enough for you: The cat turned up his nose at the food.
See also: nose, something, turn, up