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
Random Words:
1.
The act of getting a girl hammered drunk and while shes passed out you bone her and time how long it takes for you to jism.
"Dude ..
1.
To be false in the butt.
May be used to replace butt hurt
Damn, mang, you butt false
See false, butt, butt hurt, wrong..