more fool you, them, etc.
more fool (one)
An expression mocking a decision or action that one thinks to be particular stupid or foolhardy. If you give money to Jeremy and expect him to pay you back, then more fool you. A: "So, you sold your car and bought a nice bike, but now you're moving to the middle of the countryside?" B: "I know, more fool me."
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
ˌmore fool ˈyou, them, etc.(spoken) (used as an exclamation) you, etc., were very foolish to do something: ‘He’s not going to accept that job in Vienna.’ ‘More fool him. He’ll never get another chance like that again.’
Farlex Partner Idioms Dictionary © Farlex 2017