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to beat one's brains in
01
to hit a person in the head so much that they die or get seriously injured
What is the origin of the idiom "bash one's brains in" and when to use it?
The origin of the idiom "bash one's brains in" or in the context of causing harm or death by striking someone in the head repeatedly is not rooted in a specific historical event or source. Instead, it is a grim expression that likely evolved over time from the literal description of inflicting severe head injuries. It reflects the violent nature of such actions and is used to emphasize the extreme and brutal nature of the harm inflicted upon an individual. This idiom does not have a known historical origin but is rather a metaphorical extension of the idea of physical violence.
Example
He's been beating his brains out trying to finish that project on time.
She beat her brains out studying for the exam, but it was just too difficult.
I've been beating my brains out trying to figure out this puzzle, but I can't solve it.
The gang of thugs cornered the unfortunate individual and proceeded to beat his brains in, leaving him in critical condition.
