Top definition
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
Get the mug
Get a Backpack Dump mug for your Facebook friend Georges.