A 40 oz. glass bottle of malt liquor placed into an emptied paper Eggnog container, often used for concealing the malt liquor or to keep hands from getting cold while drinking malt liquor, but mostly used in light of holiday cheer since Eggnog is only available around the holidays.
a QT slushy that has every flavor available (excluding chunky ice) mixed together
"My fellow nignoggins and I got back from taking our rides down to Mexico, and decided to cool off from taking everyone to gapplebees. So, I mixed everyone some fresh nignog"