put (something) where the sun doesn't shine

vulgar slang An expression of one's abject disdain, contempt, or disregard for something one has or is saying. The place "where the sun doesn't shine" refers to the other person's buttocks. Why don't you put all that pretentious rubbish where the sun doesn't shine, eh? A: "How did you end up in jail?" B: "Well, the officer tried to give me a parking ticket, so I told him to put it where the sun doesn't shine."