boner
noun
\
Definition of boner
1 : one that bones
2 : a clumsy or stupid mistake also : howler sense 2
3 vulgar slang : an erect penis
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From the Editors at Merriam-Webster
My Bad: 7 Words for When Things Go Wrong
My Bad: 7 Words for When Things Go Wrong
Not that you ever make a mistake
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boner
noun
English Language Learners Definition of boner
: a foolish or careless mistake
: an erection of the penis
See the full definition for boner in the English Language Learners Dictionary
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