Retardism

A religion much like Buddism, however, where Buddism practices sitting very still to meditate, Retardism practices sitting very still so not to hurt themselves. To be a retardist takes an unfathomable amount of devotion and is reserved for the utmost idiotic.

"I've honestly never seen someone with such a lack of common sense"

"I'm pretty sure he's a retardist, he practices retardism"