beat brains out

beat someone's brains out 

1. to hit or batter someone severely. She threatened to beat my brains out. Those thugs nearly beat his brains out.

2. to drive oneself hard (to accomplish something). I beat my brains out all day to clean this house, and you come in and get dirt on the car-pet! Don't beat your brains out. Just give it a good try.

See also: beat, brain, out

beat one's brains out (to do something)

to try very hard to do something. If you think I'm going to beat my brains out to do this, you are crazy. I beat out my brains to do this for you! Iwon't beat my brains out again for you!

See also: beat, brain, out

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beat your brains out

to spend a lot of time worrying about a problem and thinking about how to deal with it (often + doing sth) I've been beating my brains out trying to think of a way of getting the money to her in time.

See also: beat, brain, out

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beat somebody's brains out

1. to seriously hurt someone I was afraid he was going to come back and beat my brains out.

2. to severely criticize someone How could I win the election with that guy on the radio beating my brains out every day?

See also: beat, brain, out