boner

noun

bon·​er ˈbō-nər 

1

: one that bones

2

: a clumsy or stupid mistake

also : howler sense 2

3

vulgar slang : an erect penis

Word History

First Known Use

1896, in the meaning defined at sense 1

Kids Definition

boner

noun

bon·​er ˈbō-nər 

: a stupid or ridiculous mistake