back that ass up

when a girl puts that delightful arch in her back, and sticks her ass out in a erotic/sexually suggestive manor, often accompanied by a "booty dance", that brings shear delight to the males species.

"did you see her back that ass up, playboy? it almost brought a tear to me eye, and a 2x4 to my pants!"

"did you see lucy liu bending over in the drive-thru scene in charlies angels?? ddaaaaaaaaamn, it was delightful! that the essence of female perfection!"

by deluks November 30, 2005

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back the fuck up

Threat suggesting that the enemy should leave or be quite. The enemy may take the advice (see punked) or disregard the advice (see toe to toe or fight).

"I've got a bat with your name on it. Best for you to back the fuck up."

by Beedub January 31, 2004

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back the trolley up

To tell someone to hold on, or tell them to reconsider their last statement.

"damn she's hot!"
"back the trolley up man, she's got absolutely nothing going for her."

by Scott DeBoer September 26, 2007

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back that ass up

1. Back the fuck up. Get out of my face. Calm Down
2. Insist a female shake and rub her ass against you when dancing.

1. Damn nigga, back that ass up before I get crazy up in here.
2. Come here girl and back that ass up for me.

by Phatty Mcgatty March 28, 2004

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back it up like a Tonka truck

To back it up and get down.

An ancient saying, originating in Mesopotamia, recently reintroduced by rapper Pitbull in the song 'On the Floor' by the Jennifer Lopez.

Moments after entering the club, Matthew backed it up like a Tonka truck.

Joseph ordered a root beer at the bar, then proceeded to back it up like a Tonka truck.

by grandmaster_phag June 29, 2016

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