blow someone’s mind

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.
See also: blow, mind

blow someone’s mind

1. tv. to impress someone; to overwhelm someone. This whole business just blows my mind.
2. tv. [for a drug] to intoxicate someone. This stuff will blow your mind.
See also: blow, mind