When the smaller mate (regardless of sex (if female use stap-on similar to pegging)) rides on the back on the bigger one (who runs as fast as they can) while fucking them in the ass.
Guy 1: Yo last night my girl gave me the Alabama Backpack
Guy 2: Nice! How far did you run?
Guy 1: All the way to the gas station!
Guy2 : Damn!!
Guy 2: Nice! How far did you run?
Guy 1: All the way to the gas station!
Guy2 : Damn!!
by Jonnysockskin July 27, 2016
Get the alabama backpackmug. Jason: ha ha your just a little pussy ass bitch
Josh: that's it i'm done with your shit
Jason: so what are you gonna do
Josh: (pulls out black backpack and reaches in)
Jason: oh shit he has an AK run
Josh: (shoots gun)
Josh: that's it i'm done with your shit
Jason: so what are you gonna do
Josh: (pulls out black backpack and reaches in)
Jason: oh shit he has an AK run
Josh: (shoots gun)
by Black backpack December 2, 2021
Get the Black backpackmug. When you pull out during sex and cum on someone's back without telling them so they lay down and smear semen on their sheets.
Did you hear about Drew's girlfriend dumping him? Yeah man, he gave her a mayonnaise backpack and she ruined her sheets. 1,500 thread count, bruh. That's not cheap!
by Neo-Neo Zeon July 1, 2020
Get the Mayonnaise Backpackmug. the friends of hot chics, who are not hot themselves,so they feel insecure and while your talking to her hot friend(s), they always come along and find a reason to take the hotter one away from you like theres something else better to do.
by projectmcl June 26, 2004
Get the backpack girlmug. Backpack boys are a group of pubescent wannabe hype beasts. They wear large backpacks that are much too large for their teenage bodies. They travel in packs, and all mysteriously look alike, but they are NOT related. They never seem to talk, just walk around with their big backpacks. The term “backpack boys” was coined by Daisy Baierl in 2019.
by Hipandwiththekids November 6, 2019
Get the Backpack boysmug. by Nunyallsbiz April 18, 2013
Get the backpacking the rockiesmug. A backpack college is when a student comes home from college every weekendvinstead of staying and partying at your school. This is often confused with a suitcase college which really means a commuter college and the student has no choice but to go home.
Tim-Where is everyone at?
Bill- People are bitches and go home every weekend.
Tim- This is such a backpack college!
Bill- People are bitches and go home every weekend.
Tim- This is such a backpack college!
by college kid knows November 19, 2009
Get the Backpack Collegemug.