boner

A boner is an erection. It's also a word for mistake. Either way, you probably want to hide your boner.

This is a very slangy word that is not fit for many situations. No one really wants to hear "I have a boner!" or "I made a boner!" — especially because the "erection" meaning has kind of overshadowed the "mistake" meaning. If you mess up, you're better off with a word like goof, flub, blunder, or snafu. Those words are all kind of fun, and they won't get you in any more trouble than you're already in for making a boner.

Definitions of boner
1

n an embarrassing mistake

Synonyms:
bloomer, blooper, blunder, boo-boo, botch, bungle, flub, foul-up, pratfall
Types:
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bobble
the momentary juggling of a batted or thrown baseball
spectacle
a blunder that makes you look ridiculous; used in the phrase `make a spectacle of' yourself
bull
a serious and ludicrous blunder
fumble, muff
(sports) dropping the ball
fluff
a blunder (especially an actor's forgetting the lines)
faux pas, gaffe, gaucherie, slip, solecism
a socially awkward or tactless act
howler
a glaring blunder
clanger
a conspicuous mistake whose effects seem to reverberate
misstep, stumble, trip, trip-up
an unintentional but embarrassing blunder
Type of:
error, fault, mistake
a wrong action attributable to bad judgment or ignorance or inattention

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