a person or thing that radically and suddenly affects one's thinking, perceptions, psyche, etc.
LSD. (Drugs.) ]]> That mind-bender takes a long time to wear off. ]]> This stuff is a real mind-blower.]]>Copyright 2007. Published by McGraw-Hill Education.]]>Dictionary of American Slang and Colloquial Expressions
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.
The example also shows how a similar mind bender can be easily constructed with a ruler.
If you think about it too much it's a bit of a mind bender for an actor to simulate someone who is simulating things.
No matter how worldly one was, this show was a real mind bender.