screwup
nounEtymology Deverbal from screw up.
1
Colloquial A substantial mistake, usually causing problems for more people than just the person or group who made it.
- The Ford administration emerged in better shape than it deserved from the fantastic screw-up that preceded the release of the Rockefeller...1977, John Osborne, White House watch: the Ford years, page 147:
2
Colloquial A person who often makes substantial mistakes; a bungler.
3
Colloquial A person who is mentally or emotionally damaged.