Wierd Shaped Isopod

[isopodluvr]

look at the proportion of this zebras back end to its front haha. <edit>

 

[Poonjab]

That’s just nicki minaj

 

[Xeroporcellio]

Looks like someone had a lot of krabby patties too fast! Beware of the explosion!

In all seriousness, however, it is just in the stage of molting. This ''butt' is the new, bigger exoskeleton. After a while, it will shed the frontal half too and become equally-proportioned.