mindfuck /maɪnd.fʌk/noun 1verb 1forms 3 noun1 •(slang, vulgar) Something that intentionally destabilizes, confuses, or manipulates the mind of another person.The actual naked fact of Establishment power in the person of the police was a real mindfuck. — 1968 verb1 •(slang, vulgar) To intentionally destabilize, confuse, or manipulate the mind of another person.Two young Canadians get mindfucked by a giant American, but they kill him in the end and then start in on each other. — 1974 formsmindfucked · mindfucking · mindfucks