Spewart

Spewart is a a stocky member of the Broodals dressed in a blue suit and a blue hat with a spiked ring, and is physically similar to Morton Koopa, Jr. Like the other Broodals, he is found in Super Mario Odyssey, specifically in the Wooded Kingdom and Luncheon Kingdom. In battle, Spewart spews poison from his mouth in order to damage Mario.

Dark Side brochure information
Spewart, the Entertainer

Is the vulgarity all an act?

''Spinning around while spitting poison in a wide area, Spewart is the least subtle of the Broodals. But he also has an unexpectedly artistic side, as his poisonous ground-paintings show.''