It is important to know the differences between these two primitive forms.
One is a creature with a very small brain and small hands. It preys on the weak and injured but also eats carrion. This explains its bad breath.
The other is a dinosaur.
There is one other important distinction. Unlike the T-Rex, the T-Rump can speak, albeit in a very rudimentary fashion. Its favorite word is ‘disgusting.’
It has (in)famously referred to urination as disgusting. It is safe to infer then that it finds defecation even more so and thus refuses to do it.
This explains an observed phenomenon. Since the undigested food bits and other detritus that comprise fecal matter have to go somewhere, it has managed to reverse peristalsis. Thus it continuously spews crap from its mouth, always calling it of course, “Wisdom!”