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Phrase(s): blow someone’s mind
1. Sl. to disturb or distract; to destroy the function of one’s brain. • It was a terrible experience. It nearly blew my mind. • She blew her mind on drugs. 2. Sl. to overwhelm someone; to excite someone. • It was so beautiful, it nearly blew my mind. • The loud guitar music was so wild. It blew my mind.
McGrawhill's American Idioms And Phrasal Verbs