Definition of bosh
: foolish talk or activity : nonsense —often used interjectionally
Examples of bosh in a sentence
Don't believe a word she says—it's all bosh.
<a pseudoscientific examination of UFO claims that was utter bosh>
Origin and Etymology of bosh
Turkish boş empty
First Known Use: 1834
BOSH Defined for English Language Learners
Definition of bosh for English Language Learners
: foolish words or ideas
Seen and Heard
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