2 definitions by ray<3

Top Definition
Refers to particularly deep or rough sex. Implies that the man will literally knock vaginal walls down.
I'm sorry, Mandy can't come to the phone, I'm too busy knockin' the bottom out of it.
by ray<3 August 30, 2008
The verb form of "Knockin' the bottom out of it". (Refering to rough sex with a woman)
-Also see, beat her guts up.
"Sorry I didn't pick up my phone last night man, you cought me right in the middle of bottom knockin'.
by ray<3 August 30, 2008

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