Bibblenut

(noun, insult - British slang)

A complete and utter fool; someone whose actions are so bafflingly stupid that you start to question the existence of common sense.

A person who can't be trusted with even the simplest task, often making a mess of things in spectacularly ridiculous fashion.
"Oi, you absolute bibblenut, you put diesel in a petrol car again!"

"Don’t be such a bibblenut, it’s lefty loosey, righty tighty!"
by bodar_big34 May 07, 2025
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