Top definition
That one bitch that looks after all the people, even if they ain't hers. Will smack upside the head when needed, but also will nurture when required.

Do not upset the broodmother, she is not bound by your own mothers rules, and will implement force.
"I'm the broodmother of our friends group."
"Wow, stop being such a broodmother!"
via giphy
by IvyShadow February 12, 2017
Happy St. Patties Day!