(idiomatic) Brains; a person's ability to think. / Literal brains as a general substance. / (neuroanatomy) A collection of cell bodies and (usually) dendritic connections, in contrast to white matter.

(idiomatic) What is wrong? What's the problem? / (dated) What's happening? What's the news?

The matter or thought presented for consideration in some statement or discussion; that which is made the object of thought or study.

A fact or statement that is recorded in governmental records or in publications. / (law) A fact that is contained within court files or has otherwise been entered into evidence before the court.

Feces.

Any solid or liquid in a finely subdivided state, especially when considered as an atmospheric pollutant.

of, or relating to facts only; literal, realistic / lacking emotion or colour / straightforward, blunt, frank; treating the situation as normal; not embarrassed, coy, or dramatic.

(neuroanatomy) A region of the central nervous system containing myelinated nerve fibres and no dendrites

As though stating a fact. / As though the situation is normal and not unusual; not dramatically or fancifully.

(physics) A hypothetical mirrored counterpart to ordinary physical matter.