The combination of two English exclamations, in order to give extra gravitas to the fact that you don't care.

I couldn't give a flying fuck, and I couldn't give a monkey's arsehole.
Karen says she's offended, well I couldn't give a flying monkey's arsehole.
by Rikstir May 30, 2025
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Flying Nut Monkey

Verb: The act of swinging on a sex swing wearing a gorilla suit.
Mary Ann was totally into the flying nut monkey last night.
by Filthy gym sock March 13, 2017
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