Thumper is Bebe Stevens' pet cat. He was first mentioned in the Season Six episode, "Bebe's Boobs Destroy Society", and made his first appearance in the Season Twelve episode, "Major Boobage".
Bebe wrote an essay on him to read aloud to the class in "Bebe's Boobs Destroy Society". According to Bebe, Thumper likes to chase his tail a lot.
He appeared for the first time, six seasons later, in "Major Boobage", where he was shown playing in his litter box in Bebe's kitchen. He is then taken away by DEA agents, due to the ban of cat urine as a means to get high.
Thumper is a feline with white fur, a pink nose and ears, and black whiskers.
"Bebe's Boobs Destroy Society" - Mentioned in Bebe's essay she read aloud to the class. "Major Boobage" - Seen taken away by DEA agents.