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blow (one's) mind
To extremely impress, overwhelm, or excite one. The show of support from everyone just blew my mind. I had really low expectations for that movie, but it totally blew my mind.
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.
blow (one's) mindSlang
To affect with intense emotion, such as amazement, excitement, or shock.