Back that up

Expression used to show thanks or appreciation for something someone has done for you or it can be used after a business transaction has taken place.

Person doing favor: I got that green you wanted.

Person receiving favor: Back that up dawg.

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Back it up

“i can do this all day~ back it up back it up”
Make a wish - NCT U

“Back it up bbygirl😩🥵💨❤️“
“pushing my ass or the kpop music?”
“what”
“what”

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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!"

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Back it up and dump it

When dancing at the club: This is when a woman faces away from you, bends over, and uses you like a stripper pole. This usually includes booty to package contact, with rhythmic grinding, followed with a quick squat performed by the woman to where dat ass either hits the dance floor, or your shoe.

When having sexuals: This is when, while in the doggy style position or one of its variants, the woman either pushes back upon the male member and then grinds on the cock while it is fully inside of her, or when the woman gyrates her hips vertically while stroking back and forth on the cock.

lil Wayne in the song, 'Every Girl': "...I just wanna get behind it, and watch you back it up and dump it..."

--------------------

Bob: What did you do this weekend?

John: Well, Friday, yo mama called me when you went to sleep, and I came over and let her back it up and dump it.

Bob: Shut up!

John: Move out of yo mama's basement!

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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.

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back-up, back-up prom date

This is basically someone that you know will say go with you to prom if you ask them. This has to be a person that you can relatively stand for a full night, or else can stand to stand next while taking pictures and then ditch him/her for the rest of the night and hang out with that person that you actually wanted to come with. This has to be a person that you know no one else will want to ask, so they are definately available.

Steve is my back-up, back-up prom date, so I know that I am guaranteed to be going with someone.

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Getting the back wheels up

To stick your dick and balls into a pussy at the same time

Ive been getting the back wheels up a fair bit lately on my new cum rag

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