The term meh is an interjection, used as an expression of indifference or boredom. The word is also used to indicate agreement or disagreement. Meh gained popularity as a result of its use on 'The Simpsons'.
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what does meh mean
(an expression of boredom or apathy): We thought it would sell, but customers are saying “Meh!”
unimpressive; boring: The first few songs were meh.