noun ·Uncommon ·College level

Definitions

Noun

1. 1
   A serious mistake. vulgar

   "Forgetting our anniversary was a major fuckup."

2. 2
   an embarrassing mistake wordnet
3. 3
   One who continually makes mistakes; a person who fucks up a lot. derogatory, vulgar

   "You've got to fire that fuckup."

4. 4
   someone who makes mistakes because of incompetence wordnet
5. 5
   A mentally or emotionally damaged person. derogatory, offensive, vulgar

Synonyms

All synonyms

bloomerblooperblunderbonerboo-booflub

Example

More examples

"Forgetting our anniversary was a major fuckup."

Etymology

Deverbal from fuck up.

Related phrases

fuck up

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.