more fool (one)

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."
See also: fool, more
Farlex Dictionary of Idioms.

more fool —

used as an exclamation indicating that a specified person is unwise to behave in such a way.
2002 Pride Any self-respecting female should be wise enough to steer clear of Romeo rats and, if you don't, then more fool you.
See also: fool, more
Farlex Partner Idioms Dictionary

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.’
See also: fool, more
Farlex Partner Idioms Dictionary
See also:
  • more fool
  • more fool you, them, etc.
  • sucks to be you
  • laugh oneself out of
  • laugh out of
  • live in sin
  • live in sin, to
  • ring off
  • be off (one's) dot
  • go too far