FISHMO

fuck it, shit happens, drive on

rude slang Bad things happen, so stop dwelling on or ruminating about it; forget it and move on. Commonly abbreviated with the initialism "FISHDO." I know you're sad about that, but come on, man—fuck it, shit happens, drive on. Tomorrow's another day.
See also: drive, fuck, on, shit
Farlex Dictionary of Idioms.

Fuck it, shit happens, drive on

and Fuck it, shit happens, move on and FISHDO and FISHMO
sent. & comp. abb. Sorry about your trouble, forget it and get on with your life. (Usually objectionable.) Stop going on and on about your problem. FISHMO. Grow up, chum. Fuck it, shit happens, drive on.
See also: drive, fuck, on, shit

FISHMO

verb
See Fuck it, shit happens, drive on
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • FISHDO
  • YKWIM
  • WTG
  • CTFO
  • AITYD
  • AINEC
  • IAW
  • ACAB
  • HTH
  • DYOR