noun: A minimalist esoteric programming language, created for amusement, in which every basic machine instruction is represented by a single character.
noun: (vulgar) Something that destabilizes, confuses, or manipulates a person's mind.
verb: (vulgar) To destabilize, confuse, or manipulate a person's mind.
noun: Alternative letter-case form of Brainfuck [A minimalist esoteric programming language, created for amusement, in which every basic machine instruction is represented by a single character.]