noun, slang ·Moderate ·High school level

Definitions

Noun

1. 1
   An eccentric or odd person. Ireland, UK, humorous, often
2. 2
   someone deranged and possibly dangerous wordnet
3. 3
   Someone who is insane. derogatory, slang

Synonyms

All synonyms

weirdobizarrobugcrackpotcrackpotcrank

Example

More examples

"I would not be here if I had not been a nutcase."

Etymology

From nut + case. Compare headcase, mental case etc.

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