slang To make something unpleasant seem more appealing than it really is—which is often a futile effort. "Turd" is a slang term for a piece of feces. Look, man, your term paper was bad before, and all of your edits are just making it worse—polishing a turd won't make it better.
tv. to copulate or otherwise have sex. (Refers to a male. Usually objectionable.) Man, if you want to get your knob polished, just let me know. I got girls! I got girls you wouldn’t believe!