A mythical creature shaped rather like a jellyfish, often found fangoriously devouring preteen children. Originates from the informative childrens literature, strongbad's Everyone is Different. See also fangoriously devoured.
"Some people are being fangoriously devoured by a gelatinous monster... Hillary's legs are being digested."
A dungeon-dwelling monster invented for the game "Dungeons and Dragons." An enormous toxic blob, it fills any space it inhabits and digests all organic material it encounters.
Dude, my level 13 elf fighter-mage was totally eaten by a gelatinous cube.