rack (one's) brain(s)

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rack (one's) brain(s)

To struggle to recall or think of something. I've been racking my brain, but I still can't remember what Lydia's husband's name is.
See also: rack

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.
See also: brain, rack

rack one's brain

Also, cudgel one's brains. Strain to remember or find a solution, as in I've been racking my brain trying to recall where we put the key, or He's been cudgeling his brains all day over this problem. The first term, first recorded in 1583 as rack one's wit, alludes to the rack that is an instrument of torture, on which the victim's body was stretched until the joints were broken. The variant, from the same period, uses cudgel in the sense of "beat with a cudgel" (a short thick stick). Shakespeare used it in Hamlet (5:1): "Cudgel thy brains no more about it, for your dull ass will not bend his pace with beating." Also see beat one's brains out.
See also: brain, rack

rack your brains

or

rack your brain

COMMON If you rack your brains or rack your brain, you think very hard about something or try very hard to remember it. She racked her brains but could not remember enough to satisfy the clerk. They asked me for fresh ideas, but I had none. I racked my brain, but couldn't come up with anything. Note: The old-fashioned spelling wrack is occasionally used instead of rack in this expression. Bob was wracking his brain, trying to think where he had seen the drivers before. Note: You can refer to this activity as brain-racking. All your brain-racking is making absolutely no contribution to the world.
See also: brain, rack

rack your brains (or brain)

make a great effort to think of or remember something.
A rack was a medieval instrument of torture consisting of a frame on which a victim was stretched by turning rollers to which their wrists and ankles were tied. To rack someone was to torture them on this device and the image in this idiom is of subjecting one's brains to a similar ordeal in the effort to remember something.
1998 Spectator If I rack my brains for something nice to say about our weather, I suppose it does at least enable us to grow better grass than they do in California.
See also: brain, rack

rack your ˈbrains

(also wrack your ˈbrains less frequent) (informal) try very hard to think of something or remember something: I’ve been racking my brains all day trying to remember his name.
See also: brain, rack

rack (one's) brain

Informal
To think long and hard: I racked my brain for hours trying to recall her name.
See also: brain, rack

rack (one's) brains

/brain
To try hard to remember or think of something.
See also: brain, rack
References in periodicals archive ?
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If so, you might be racking your brains to come up with a way to do it.
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com where you will find an abundance of movie teasers, which will leave you racking your brains for the star of that movie.
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