This is a thought I had:
CatDog / Portal mashup.
This doodle took way longer than it should have.
For those who want explication, CatDog was a show on
Nickelodeon that ran during the end of the 90s into the 00s.
It was about a cat and dog attached at the abdomen.
Many people wondered how they pooped.
CatDog ™ of Nickelodeon.