Extruded styrofoam packing material. The term originally applied to styrofoam in the shape of small, worm-like rods, about 1/4" in diameter and random curvature, that were in use in the 1960's. It use has since been expanded to include plastic packing material of all shapes and composition.
The act of a group of friends getting into bed together to cuddle. After a heavy night of drinking or doing drugs, a schmustle is often formed to offer support and comfort to friends. A schmustle is completely platonic and is nothing more than friendsbeing there for eachother in times of need.
person 1: aw man I did way too much molly last night
person 2: me too, let's go schmustle for the whole day