A large lump/grouping of chewed gum

Liquid-filled lumps found on a person’s back.

A glump is a big hug, usually over-enthusiastic, near-violent, or made by a gang of fans.

The first time I heard this word was at an Anime Convention regarding people wearing costumes.

to glump (v.) the act of rolling a person on roller skates back and forth to anally penetrate them. 2007, from "glide and bump"
forms:
to glump
glumped
glumping
glumper

White mucus buildup of the inner corners on the mouth.

Its the act of jumping ontop of another and humping on them. xD The combination of the root words glomp and hump.

A term for pooping that is unique to McDaniel College students. This derives from the poor quality of food served from the dining hall, Glar.