Bianchi Backpack

A personal backpack for carries only who enjoy bottling and ksing FTW...

Kai carried Marino throughout his entire career in his famous "Bianchi Backpack"....

by TheCarryOfJoom March 26, 2010

Overstuffed Backpack

A term normally used as an inside joke to refer to a fat, ugly, douchie, male who has no idea you are refering to him.

(Right in front of the overstuffed)

Samantha: The overstuffed backpack gained some extra books today

Marissa: Yeah, some huge textbooks!

Overstuffed Backpack: WTF?

by nmgirl February 22, 2011

Open Backpack

Meaning that you can see someone's butt crack or underwear slightly as a person is bending over similar to the zipper of a backpack being slightly open.

(Emily bends down to grab books) Me: Hey Emily you've got an open backpack
Emily: Did you notice my new Victoria's Secret thong?
Me: No I was just looking at your crack.
Emily: You're an asshole.
Me: LOL get it?

by mastablasta5000 October 21, 2011

Organic Backpacking

Backpacking without planning and letting the world take you around. By doing this, you will experience and see things that doesn't happen often.

An organic backpacking trip in Europe.

by nonameafterall March 31, 2015

Australian Backpack

A sex act in which a male is mounted by their partner in a "piggyback" style, wrapping their legs around the the front of the body, and masturbates the male with the arches of their feet (to completion).

My quads are exhausted after that Australian Backpack I got from Meghan last night

by megsydmillard May 4, 2016

sheep backpack

When you take your sheep on top of your roof and violently engage in coitus

Neighbor: hey what are you doing Tony. Tony: nothing just taking my sheep backpack for a test drive
neighbor: gross

by Richard Beater September 16, 2018

Heavy Backpack

Used by a Eugene, typically the day after they snap. The backpack is heavy due to the AK.

Oh no, Eugene has a Heavy Backpack.

by Meememeem January 22, 2019