Definition of mindfuck in US English:

mindfuck

noun

vulgar slang
  • A disturbing or extremely confusing experience, in particular one that is caused by deliberate psychological manipulation.

verb

[with object]vulgar slang
  • Greatly confuse or psychologically disturb (someone).

Pronunciation

mindfuck

/ˈmaɪndˌfək//ˈmīndˌfək/