The Angry Beavers (1997)

S3E9 In Search of Big Byoo-Tox

Unsneaky Dag seeks the guidance of a large, hairy individual whom he believes to be the legendary Big Byoo-Tox. His goal is to learn the art of stealth in order to successfully snatch a toy from his brother Norb. As Dag embarks on this quest for cunning skills, he hopes to outsmart Norb and secure the toy for himself.