turn your nose up
US /tɜrn jʊər noʊz ʌp/
UK /tɜrn jʊər noʊz ʌp/
1.
to refuse to accept something because you feel that it is not good enough for you
:
•
She always turns her nose up at fast food.
•
Don't turn your nose up at a good opportunity.
to refuse to accept something because you feel that it is not good enough for you