Musty Backpack

A copious vagina which is moist and musty from a hard day pounding the streets.

Awh that lass from the pub had a right musty backpack!

by Krinthor April 12, 2019

Backpack

Backpack, when you sexual partner is held up near your chest bouncing on your dick almost like a backpack.

She was like a backpack

by FagPuffisFun May 21, 2019

Dion's Backpack

Dion's backpack is a term used to discribe something amazing

"Wow" Olivia said while looking at dion's backpack

by Ree5e_richie May 14, 2018

Backpack Dump

When you take someone’s backpack, take a dump in it and bring it back without them knowing.

**Chad takes Brad’s backpack to bathroom**
Chad: I’m going to give this backpack some liquid luck.

**Chad brings back backpack**
Brad: Who took a dump in my backpack?! **Chad is snickering from across the room**

Chad to classmate: I took a backpack dump

by Trappa-keepa May 14, 2018

Backpack

A container that is used in most situations to hold school supplies

I forgot my backpack at my house

by Piece of buttocks February 27, 2017

extreme backpacking

When you put random inanimate objects in your partners butt for fun, with no lube.

Dorothy and I are going to try out some extreme backpacking this weekend. Would you like to be apart of the insertion?

by Matt42490 May 4, 2018

Backpack

A bag for carrying tons of weed in plastic baggys.

Son, why does your backpack smell like shit? Have you forgotten to put out your school bread?

by Dope420 January 15, 2017