my foot
US /maɪ fʊt/
UK /maɪ fʊt/

1.
무슨, 말도 안 돼
used to express strong disagreement or disbelief about something that has just been said
:
•
He said he's a genius. Genius, my foot!
그는 천재라고 했어. 천재는 무슨!
•
You think that's a good idea? Good idea, my foot!
그게 좋은 생각이라고 생각해? 좋은 생각은 무슨!