something or someone that you thought was gone for good, but then is "back up in yo ass.
dude 1: "didn't you beat that fool good?"
dude 2: "yeah, I thought he was gone for good"
dude 1: "well he's back up in yo ass now!"

man 1: "damn it i thought they stopped playin' that stupid commercial"
man 2: "well, its back up in yo ass now!
man 1:shit
by QtotheZ April 28, 2007
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Any time when an individual's ex wants him/her back after breaking up with the person the ex was previously dating.
Mike: Hey Joe. You remember my ex, Samantha?
Joe: Yeah, why?
Mike: Her and I are talking again. Apparently her boyfriend dumped her.
Joe: On back-up booty call I see...
by smatt154 March 2, 2014
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A dirty hammer usually used for beating things live a retard. Can be used as an insult if desired.
by JustaStoner January 14, 2020
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A command, or request from one to another to get out of ones bussiness, or to stop bothering one.

1. Stop Bothering Me
2. Stay away from me
3. Im busy, leave me alone

Non sexual ^
Nate: Back Up Off my Tip!
Everyone else: Uhhh... eW?
by Nate Sexton March 5, 2004
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When an aspiring singer never makes it as a big star, they move forward in their life making sure they're always in the spotlight; even if it means making people feel bad about themselves.
I don't know why my man's mom is always trying to compete. Always trying to be in the spotlight, like she got back up singer complex or something.
by PineappleDreams July 3, 2014
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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..."

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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!
by t_doffing July 28, 2009
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