wash a brick

To do or attempt something futile. That couch will never fit up the steps—tell them to stop trying to wash a brick!

Name	Pronounced	Usage
Bernadette	ber-na-DET (French)	French, English
Feodora	-	Russian
Janan	-	Arabic
Fatma	-	Arabic, Turkish, Azerbaijani
Fridumar	-	Ancient Germanic
Firminus	-	Late Roman