polish a turd

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.

Common Names:

Name	Pronounced	Usage
Chloe	KLO-ee (English)	English, Biblical, Biblical Latin, Biblical Greek, Ancient Greek, Greek Mythology
Lakshmana	-	Hinduism
Rhonda	RAHN-də	English
Franklin	FRANGK-lin	English
Damhnait	DEV-nawt	Irish
Ayris	['ɛəris]