Gwumpki

Gwumpki is a character from the television show Quack Pack. Hailing from a foreign country of unknown name, Gwumpki runs a fast-food restaurant where he serves his homeland's traditional food, such as the Yak-Burger. Huey, Dewey, and Louie are frequent customers, though Gwumpki is often aggravated when the topic of their unpaid tab is brought up.