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.
by AliceKit! March 30, 2021
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a short man you can carry around on your back.
alive: I've got a date with a backpack boy tomorrow night
sam: oh girlll, you gonna carry him to your bed?
alice: you know it!! he's a ginger baby too
by mysterious baba March 30, 2022
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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 March 23, 2018
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Someone who gets the sloppy seconds after the female has been fucked in doggystyle by another man who creampied her
Josh is a loser he keeps backpack fucking
by T1Dildo August 31, 2023
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That little dance move you do when you're trying to take your backpack off your back
I walked in to class late, so I had to quietly do the Backpack Wobble without looking ridiculous.
by bootymix96 December 10, 2015
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In order to smuggle marijuana an individual places a bag of weed in another's anus and then pounds it in with his penis.
In order to get weed out of the Caribbean, Turbo gave Austin a Jamaican Backpack.
by ajmurphy October 19, 2018
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