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

Backpack rapper is someone who typically talks about real life, saily life and struggles in their music. They focus on having social commentaries on mature and important topics to society and may be referred to as "Raptivists" as well.
by Mutou//ATTK June 11, 2023

A student who attends the beginning of class, but regularly takes off to "the bathroom" for ten-twenty minutes at a time, as if the backpack is going to do all the learning for him/her.
I always email my instructor at the last second to ask the most basic question because I'm a clueless backpack learner.
by barefootgirl March 7, 2011

"ring""ring"
mom "hello?"
muffled teacher " no billy that is wrong"
mom "damn it another backpack call and billy is getting answers wrong."
mom "hello?"
muffled teacher " no billy that is wrong"
mom "damn it another backpack call and billy is getting answers wrong."
by ankercod November 5, 2009

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

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

by Nunyallsbiz April 18, 2013
