To attack a person's mind thru magickal means; to mess with someone psychically or even psychologically to such a degree that that person's mind is damaged and has great trouble escaping that present chaotic/damaged state. To be in such a state.
Monica knew that her misleading behavior and magickal spells had successfully mind fucked Joshua when he had sleep full of nightmares, and his waking life had hallucinations.
When a male or a female simulate sexual acts with a sexy looking female because they know they can't fuck in real life. Mostly used in the process of masturbation.
Bob: Hey, what are you doing?
Jake: Just about to start mind fucking.
Another term for the mind or the brain. Madepopular by the TV show, 30 Rock.
Jack: (Practicing for a charity dinner) Jack Welch has such unparalleled management skills they named Welch's Grape Juice after him because he squeezes the Swedish juice out of his workers' mind grapes.