What is Back It Up?
1.
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!"
See
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The most horrible words a male could hear when asking-out or breaking up with a female.
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The most beautiful, and successful girl in the world that everyone is jealous of. Normally has short blonde hair and bright eyes. Tends ..
