beat her back out 

Rough sex from the doggy style position.

Keisha has a fat booty. You already know I had to beat her back out.

beat her back out by Mr Decatur September 7, 2017

beating her back out

To engage in sexual activity, usually in what is often referred to as "doggy-style," in a somewhat violent manner as to cause much volume from your victim, but much pleasure for both parties.

She screamed aloud as she lost her hip control while I was beating her back out

beating her back out by Mr. P March 1, 2004

blow her back out

when you do it doggystyle and she cant walk the next day or two

I'll blow her back out

blow her back out by Jamerz November 26, 2003

Blow the Back Out 

Doggie style vaginal or anal sex that is deep and vigorous leaving the recipient clapped up good with some rearranged lower intestines.

Imma go home and blow the back out on her tonight.

My asshole is ripped from stem to stern after that random last night decided to blow the back out on me.

Blow the Back Out by Dick Onchin May 27, 2020

blew her back out

For the players who claim to fuck the shit out of a bitch

"I blew that hoe's back out"

blew her back out by Peachez June 9, 2004

I'd knock the back out of that! 

Said about a sexually appealing woman, with whom you would be very eager to have sex.

To explain the metaphor: you may be a little too vigorous, and push your penis all the way through her, hence, knocking the back out of her... Obviously not physically possible, but a good, although rather crude, metaphor

Guy A: Phwoar, Check her out, what a stunner!
Guy B: God yeah, I'd knock the back out of that!

I'd knock the back out of that! by Dr Mox April 16, 2007

blow my back out 

(V) the act of having sex in the position in which the receiving partner is laying down with back arched up, and the giving partner is entering from the posterior. (See also "face down, ass up.")

Damn, I don't care how much we been arguin, just blow my back out tonight.

blow my back out by Burdenofproof July 27, 2017