the process of a woman losing her pregnancy either chemically, or by force.
"Janie got knocked down the other day when she visited the clinic for an abortion."

-"Dude, my brother knocked down his girlfriend yesterday."
-"Oh, she finally got that taken care of at the clinic?"
-"Na, my brother just punched her in the gut."
by apena89 November 05, 2007

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Top Definition
To have sex with a female. Phrase Often used in houston tx
Did u knock her down? Yeah I knocked down last night.
by Cedster June 06, 2009

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