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When you have sex instead of saying I fucked last night.you would use Back or Backin...
(said like Ballin..cept Backin')
Dont'e- Man I get mo back den you
James- Dude I just got some back from Tyra last night
Dont'e- You wasn't backin' dat
James-Man i backed dat all night

Backin'!!
by RoKenDra February 26, 2007
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3
When you are fucking your woman from behind, you violently smak her ass to a point of exhaustion while removing your penis and inserting a dildo in a gracious act of liberal democracy.
As Jack boned his woman from behind, he decided it was time to start backin and show his girl some decency.
by Dan Makozy IV September 15, 2007
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4
Any person, often elderly, usually jewish, living in Florida who cannot refrain from telling everyone else how great things are back in New York.
Watch out for those back-ins. They never stop talking about New York.
by Zebulon Montgomery Pike March 14, 2005
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5
When you have sex instead of saying I fucked last night.you would use Back or Backin...
(said like Ballin..cept Backin')
Dont'e- Man I get mo back den you
James- Dude I just got some back from Tyra last night
Dont'e- You wasn't backin' dat
James-Man i backed dat all night

Backin'!!
by TeNeedra March 08, 2007
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6
Going with, or agreeing with someone
Why u backin wit dat stuff?

Yea, I'm backin wit dat
via giphy
by PBG.C'S August 26, 2017
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