backpack rule

It's getting harder and harder these days to determine whether or not a girl is old enough to be checking out. Girls from ages 15-21 can all look the same these days. If a girl is wearing a backpack(like a hello kitty one), chances are she's too young and you should look away before being called out for being a creeper. If she has no backpack than it's safe to look, but still be cautious if you choose to engage in conversation.

Benji- "That girl is cute but she looks like she might be young."
Joe- "Gotta use the backpack rule."
Benji -"What's the backpack rule?"
Joe- "If she's wearing a backpack she's too young."

*Hot girl walks in*

Joe- "See man, no backpack... she's fair game!"

by thanks babe March 29, 2012

alabama backpack

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!!

by Jonnysockskin July 27, 2016

Backpack-slap

When a person puts backpack on and intentionally hits someone else in the face so hard the person becomes hurt.

As the irritated business woman got up she backpack-slapped the innocent commuter's face next to her.

by Wordplayuh November 29, 2016

Mayonnaise Backpack

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

Black backpack

Usually belonging to the quiet kid with every thing he needs. An knife, rope, ak47, and a gas mask.

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)

by Black backpack December 2, 2021

Backpack Rapper

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.

Mos Def is a Backpack Rapper.

by Mutou//ATTK June 11, 2023

backpack girl

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.

that damn backapack girl ruined my gettin my swerve on.

by projectmcl June 26, 2004