Glue is a white powdery substance which comprises the residue of Glue Shot and the glue-based attacks of Liimahiisi. It is a solid powder which is generally inert, though can be burnt to produce Poison Gas.
Unlike the spell form, once it has been reduced to powder form, Glue is no longer a sticky hazard. Ingesting glue will give a small amount of the Tripping status, as well as the Food Poisoning status.
Stepping onto glue will cause you to become stuck to it. While moving far enough away from the source can free you, slice damage can free you much more quickly.