Blot

The most disgusting of all Transformers. Wherever he goes, he leaves a trail of foul-smelling lubricant which is oozing out of several different joints at any given moment. Dumb, brutish, but loyal. In creature mode, claws allow him to climb any wall. Breathes fire. In robot or creature modes, uses slime gun to shoot stream of corrosive liquid.

(Source: Wikipedia)