On the Term: 'Mind Fuck'

Definition from Wiktionary, a free dictionary:

English

Noun

mind fuck (plural mind fucks)

1. (psychology) a situation which calls into question the way your mind currently sees a certain idea or the world in general

1973, Kathryn Watterson, Women in Prison, University of Michigan/Doubleday, page 322,

"One day there was a big cockroach on the wall and a woman hit it with her shoe and it screamed. I swear it screamed. That was about it for me. It was really a mind fuck."

Or, an audio-visual example: