What does "brain" mean?

See brain in WNW Idioms

beat one's brains

to try hard to remember, understand, or solve something

have on the brain

to be obsessed by

pick someone's brains

to extract information, ideas, etc. from someone and use to one's own advantage

See brain in American Heritage Dictionary 4 Idioms

beat (one's) brains (out)

Informal

To exert or expend great mental effort: She beat her brains out during the examination.

on the brain

Obsessively in mind: The coach has winning on the brain.

brain

pick (someone's) /brains

To explore another's ideas through questioning.

rack (one's) brain

Informal

To think long and hard: I racked my brain for hours trying to recall her name.

Learn more about brain

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