fuckup

noun3

1. •
   (vulgar) A serious mistake.

   • Forgetting our anniversary was a major fuckup.
2. •
   (vulgar, offensive) One who continually makes mistakes; a person who fucks up a lot.

   • You've got to fire that fuckup.
   • I can't believe she's dating that colossal fuckup. All he does is yap about baseball.
3. •
   (vulgar, offensive) A mentally or emotionally damaged person.