Ur ho you keep on the side away from all your friends so you can move out of the state if shit hits the fan and you'll still have pussy to fuck
Person 1: hey what are you up to?
Person 2: fucking my backup bitch
When you're callin bitches to chill/fuck and the one you like best ain't down, the backup bitch is the second on the list.
Jason: Fuck, Liz ain't pickin up...
Zack: Break out that backup bitch my nig!
Jason: Good call. Lemme hit up Alyssa
four hours later
Jason: OH SWEET JESUS