nutcase

noun — 2 senses

nutcase

noun

UK /ˈnʌtkeɪs/

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

1

Ireland, UK, Humorous, Often An eccentric or odd person.

2

Derogatory, Slang Someone who is insane.

Synonyms: freak, kook, nutbag, nutter, odd duck, wacko, weirdo, psycho, crackpot, loon, nut, screwball

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.