The act of emptying someones backpack, then turning it inside out, putting everything back in and zipping it up from the inside. Some even go as far as zip-tying the zippers together to make it extra aggravating. Also possible on some backpacks is a supernug, when you flip a backpack inside out and stuff it all into the small front compartment. This is really a dick move.
The act of taking a friend's backpack, removing everything, turning the backpack inside out, refilling the backpack, and ziptying it shut. Ziptying the backpack prevents an easy fix to the situation. If done properly and near the end of class, the victim will have to carry their "Nugget" in their arms as they walk down the hall. This can be referred to as the "Nugget Walk of Shame."
I went on a Nuggetting spree fifth period, I gotlikefive!