brains out

brains out

An intensifier that follows an action verb to indicate that the action is or will be done to the utmost degree. Commonly heard in the phrases "beat (one's) brains out" and "blow (one's) brains out." I'm not going into that haunted house—the kids in there already are screaming their brains out! I'm worried that the captain of the football team will beat my brains out if he finds out that I'm secretly seeing his girlfriend.
See also: brain, out
References in classic literature ?
They are very anxious to see me blow my brains out," said Hippolyte, bitterly.
I'll go and blow my brains out in the park,' says he,' so as not to disturb anyone.
Since you must have observed yourself that this is no joke, and since at least half your guests must also have concluded that after all that has been said this youth MUST blow his brains out for honour's sake--I--as master of this house, and before these witnesses, now call upon you to take steps.
As a cheerful human dynamo of glitz, she appeals to the audience-inner-child, which craves conditional love, and will perform our brains out until we get it.