back it up

What a guy says to a girl he's fucking from behind - asking her to push her ass back so she grinds onto him.

Also, in lesser used context, it means a girl has a nice ass.

*A couple doing it doggy style*

Chrissy: "Oh that feels so good!"
Tom: "Oh yeah, you want it harder?"
Chrissy: "Yes!"
Tom: "Back it up, back it up!"

by TJackson August 4, 2008

back it up slow

the act of a girl wanting anal sex.

i want you so bad but i'm on the rag so just let me back it up slow.

by tungsten September 6, 2004

Back it up

No, they clearly want me to murder children, therefore, give em what they want. If I don't get what I want you are going to get what you want.

Hym "And I'd like to see her back it up... Right up into me (if you know what I'm saying)."

by Hym Iam May 22, 2025

bare back it

have sex

"your pussy's dead"
"your guys still want to bare back it."

by 3rdsidesharkz June 27, 2017

why dont you back it up with a source

MY SOURCE IS THAT I MADE IT THE HECK UP

if you ever hear the question "whats your source?" just reply with that, its a meme refrence its funny trust me, plus its very helpful to use to make someone laugh

person 1: why dont you back it up with a source
person 2: MY SOURCE IS THAT I MA-

person 1: why are you like this

by Adolf-dripler December 6, 2022

Old mill, back it up

The oid mill will use this when they want there crew to ‘back it up’

Me and Ngoni were on a mad one, old mill, back it up

by Oldmilloriginal November 28, 2018

Mr. Take-it-back

A man that takes back the stuff he gives to a woman after a break-up or when she becomes an enemy of his.

You sound like a Mr. Take-it-back.

by Tropical Rythms October 11, 2019