rude slang Someone or something, often a drug, that causes one to become disoriented or confused. Oh man, somebody must have given Charlie a headfucker—he doesn't even know where he is right now.That excuse you've come up with is a real headfucker—I doubt anyone will believe it.
headfucker
n. a person, situation, or a drug that confuses someone or disorients someone mentally. (Taboo. Usually objectionable.) Why did you have to lay this headfucker on me?