Stinky, Brute and Drool

Stinky, Brute, and Drool are a trio of Pot Bellied, dimwitted trolls from "The New World of the Gnomes" and Spin-Off, "The New Adventures of the Gnomes"

New World Of the Gnomes
In the Episode, "Turtle Trouble" they came out of the volcano when they were babies when they met Persifal's teacher, Millius, as a young gnome.

New Adventures of The Gnomes
They bust out of their magical creature prison in Venice, Italy, and stumble upon Ernesto Barbarossa, who was turned into a dragon by his own greed and dragonly thoughts