rack brain

rack one's brain(s)

Fig. to try very hard to think of something. I racked my brains all afternoon, but couldn't remember where I put the book. Don't waste any more time racking your brain. Go borrow the book from the library.

rack your brain/brains

to think very hard, usually in order to remember something or to find a solution to a problem I've been racking my brains but I still can't remember who wrote that play.

See go to rack and ruin

rack (one's) brain

Informal

To think long and hard: I racked my brain for hours trying to recall her name.

Common Names:

Name	Pronounced	Usage
Averill	-	English (Rare)
Drazhan	-	Medieval Slavic
Bridger	BRIJ-ər	English (Modern)
Caietanus	-	Late Roman
Ute	OO-tə	German
Osvaldo	-	Spanish, Italian, Portuguese