brass monkey

bow-legged wi' brass

Wealthy; having lots of money.

brass ceiling

An unwritten, uncodified barrier to promotion or progression for women in law enforcement or the military.

brass farthing

Something worthless or of small value.

brass monkeys

Very cold.

brass neck

Gall, shamelessness, cheek.

cheeky monkey

An impudent person, usually a child.

double in brass

To perform two or more tasks within the same project or organization.

get down to brass tacks

To (start to) consider or deal with the most important details or facts about something.