Catheist 

A person who believes that there are no other gods in existence, apart from cats.

Dude1: what's your religion man?

Dude2: im a catheist
Dude1: wtf is that?
Dude2: I only believe in gods, insofar as they're cats

Dude1: rad

Catheist by platonymous August 6, 2022

cartheist 

A person who films in their car YouTube videos which espouse, defend, or attempt to justify religion. (Vertical video is optional, but frequent.)

"Oh, jeepers, not another cartheist! Why do you all film in your stupid car???"

cartheist by BionicDance June 8, 2019

Cantheist

Somebody who worships the cannabis plant religiously. When registering at a thc-ministry one gets an unlimited marijuhana-license because the first Amendment of US-constitution guarantees religious freedom.

Christian: Do you go to church?
Cantheist: No, I smoke shit to worship god.

Cantheist by LukeSkywalker672 January 10, 2009