beat one's brains out to do something

beat one’s brains out (to do something)

tv. to work hard at a task. I’m tired of beating my brains out to do what you want.
See also: beat, brain, out, something, to
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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