What is the definition of Packaging Fluid?

Packaging fluid, my friend, is like the unsung hero of the world's trash bin, but instead of being a hero, it's more like the villain in an epic, silent comedy. It's that sticky, slippery, and often, unseen liquid that keeps our products from flying off their boxes and getting lost in the muck of landfills. Now, here's a sentence that's a bit edgy: "I'm not complaining about the packaging fluid, but it's basically a silent assassin, quietly stealing my sanity with its invisible yet relentless grip on my garbage can."