Sex.

Inserting the penis into a vagina, and pumping the shit out of it.
They were breakin' rocks last night, didn't you hear it?

Man 1: What were they doing?
Man 2: Breakin' rocks.
Man 1: Is that what they're calling it theses days?
by Buzzinbitches January 13, 2011
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Well it’s back to breakin’ rocks for me, I’m goin’ back inside for my ninth - or is it my tenth? - term!
by Dr Bunnygirl July 2, 2020
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