wompus

A mythical creature that is known as the angriest creature on earth. The wompus, according to myth, has no asshole and so no ability to shit, but is cursed with an insatiable appetite. As a consequence, the wompus is the angriest creature on earth. A truly anally retentive person can become a wompus by retaining so much, that his or her asshole closes itself up permanently.

That wompus is one mean sum bitch