by Piece of buttocks February 27, 2017

A Backpack Boy is someone who fails to deliver to a group project. The group relies on Backpack Boy, and trusts him to do his part. Sometimes he’ll even apologize, and say he’ll start to help. But in the end, the group carries this boy like a backpack, which is what gives him his ridiculous name.
Wow this backpack is really heavy, I wish I could lighten the load! Maybe Backpack Boy could give me a hand?
Dang, I wish I could go to the movies like Backpack Boy... maybe after I’m done finishing our project.
Dang, I wish I could go to the movies like Backpack Boy... maybe after I’m done finishing our project.
by AliceKit! March 30, 2021

I saw a lot of unruly children running around at the mall. Those parents really could do with some monkey backpacks.
by seenbean August 1, 2023

When your sexual partner is giving you a piggy back ride and you are giving it to him/her in the butt.
by Purplesmurf123 February 21, 2009

Backpack barfing is when people come to your spot & dump there backpack out all over your stuff & when they pick there stuff, they take your stuff along with yours when they leave.
by Pharoh69 February 15, 2023

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

by lookin4nub December 5, 2018
