Etymology: From Greek mÅros 'foolish'.
- (obsolete) A person of borderline intelligence in the former classification of mental retardation, having of an intelligence quotent of 50-69.
- (informal) A person who makes uncool, unfunny, uninteresting, or irrelevant (see lame) attempts to impress others and draw attention to himself; especially in a flawed attempt to act like someone else.
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Full Definition of moron