mad as a fish

adjective

Demented, crazy.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

adjectivemad as a fish (not comparable)
  1. not comparableslangDemented, crazy.

    Voluble, almost incomprehensible, mad as a fish and perpetually drunk.

    2006, Damon Hammond, Totally Steaming: A Year on HMS Fearless, page 202
    3 more examples

    The only one I'm scared of is that Eliza Cooper. Mad as a fish that one.

    2006, Lou Bellamy, Haunting the Dead, page 38

    I've got a station chief who's as mad as a fish, an incomplete briefing, and a gambling-obsessed billionaire to out-bluff.

    2007, Charles Stross, The Jennifer Morgue

    Sean, the older brother, was as mad as a fish, but he was also the one with the brains and together they were a very entrepreneurial family.

    2008, Andy Taylor, Wild Boy: My Life in Duran Duran
Cite this entry
APA

mad as a fish. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/mad%20as%20a%20fish

MLA

“mad as a fish.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mad%20as%20a%20fish. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “mad as a fish,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/mad%20as%20a%20fish.

Source: mad as a fish on Wiktionary, CC BY-SA 4.0.