Song that you sing to guys with big tank asses that pass your lunch table
Whoo Whoo, sweet ass Bojangles, you's a fine mothafucka won't you back that ass up
by Anonymous March 10, 2003
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What you immediately do without thinking when you accidentally click on an ad.
Impatient Bob: I hate when I accidentally click on an ad and it takes me to the app store.

Unhappy Mickey: Me too, I back the fuck up.
by Smexy Horse February 28, 2016
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Said to someone that is to close to you and you want them to move back.
Hey Back-Tha-Fuck-Up Man you too close.
by Tonky August 19, 2005
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when a guy sees a female that he finds attractive and most likely with a ghetto booty....he will call to her by saying this
hey you....dont do me like that back dat ass up
by *~Desiree~* July 20, 2004
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the term for when you are really stoned and you want a pillow so you slide the shit on the floor to a wall.

im really stoned trying to see the TV. im laying down in the mess of my stoned-out dorm room and i slide my back to the wall and make a pillow.
i was layin on the flo tryin to watch this dvd and couldnt see shit. it pissed me off i had to back that shit up and make a pillow
by mackdaddy crystall April 23, 2007
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Back da fuck up nigga. If someone tells you to back da fuck up nigga, you better do as he says....
or you'll get smacked the fuck up.
Some youtube prankster came up to me asking if I wanted to kiss his ass. I said 'back da fuck up nigga.'
He wouldn't so I gave him a solid right hook and broke his jaw.
by kam75xx July 12, 2019
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Back the Fuck Up Before You Get Smacked the Fuck Up - A Term Or Sentence used when someone has done something wrong or has fucked up. Or when they are obnoxious.

1. When You talk to much
2.When you forget to pay a pimp
3.Fucking with people.
4.What the hell is wrong with you?
Bob: Hey yo ted wheres my money Nigga?
Steve: You Better back the Fuck up before you get smacked the fuck up bob
by Tech581 September 23, 2009
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