Blow someone's mind
/bləʊ ˈsʌmwʌnz maɪnd/informalUK · US
What does “Blow someone's mind” mean?
Blow someone's mind means to amaze or impress someone very strongly
Seeing Saturn through a telescope for the first time might blow your mind. So might learning that a familiar landmark is hundreds of years older than you thought.
It often expresses delighted surprise, but an unsettling fact can have the same effect. The past tense is “blew my mind”.
When do people say it?
Use it for a surprising discovery, an extraordinary performance or an idea that changes how you see something.
“Seeing Saturn through that telescope blew my mind.”
Is it formal or informal?
Register: informal. It is most at home in everyday conversation rather than formal writing. Most common in UK and US.
Where does it come from?
The image suggests an experience so powerful that your mind cannot take it in. It is an exaggeration, not a description of physical harm.
Origin confidence: Disputed; treat with caution
How do you say “Blow someone's mind” in other languages?
Related idioms
- Over the moon, Extremely happy about something
Last updated 2026-10-01