# nutty as a fruitcake

> English word · Adjective

## Definitions
1. Behaving in an eccentric, foolish, or kooky manner; very nutty.

## Etymology
First use appears c. 1911 or 1912. See cite below.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/nutty-as-a-fruitcake