Flop
Flop is the family pet of the Xugs, with the youngest Xug kids (Sean and ~!@~) being particularly fond of him. At rest, Flop appears like a loose collection of stubby tentacles in various colors, but he can extend a tentacle a considerable distance when he has a reason to do so.
Flop perhaps gets his name from his method of locomotion; he gets around by flopping around, tumbling... one would say head over heels, except that of course he has neither a head nor heels, nor in fact any distinguishable top or bottom.