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DictionarybonerFoolish mistake
noun

boner

A foolish mistake or blunder.

The painter pulls a boner by painting himself into a corner.

An obvious foolish mistake: a home painter has painted himself into a corner, leaving wet floor paint between himself and the exit.
Etymology
bānOld Englishbone
+-erEnglishthing characterized by

This slang term is commonly connected with bonehead, an insult for a foolish person. A boner is accordingly the kind of mistake attributed to someone acting like a bonehead.

In context

Jomboy Media5:04
boners which is a painful and prolonged erection you know the all the all the patients their characteristics symptom having a boner
Fan throws a ball from the stands that hits Mariners pitcher | Weekly Dumb

More examples

  • He admitted making a boner.
  • The comedy turns on a series of boners.
  • That scheduling boner delayed the entire trip.

Forms

boner · boners

Similar words

blunder
The common word for a careless or serious mistake.
gaffe
Usually an embarrassing social or public mistake.