fuck you definition: command for someone to leave or go away. Check meanings, examples, usage tips, pronunciation, domains, related words. En resumen, "fuck you " es más personal y directo, mientras que "fuck off" es más para indicar que se quiere que la persona se aleje. Ambas expresiones son muy informales y deben usarse con precaución, ya que pueden resultar muy ofensivas en la mayoría de situaciones. Definition of fuck verb in Oxford Advanced Learner's Dictionary. Meaning , pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The origins and historical context of the idiom “fuck you ” are deeply rooted in the English language. This phrase has been used for centuries to express anger, frustration, or contempt towards someone else. It is a vulgar expression that can be considered offensive in many contexts.