Simpily Quad + Autism, Quatism is a disease, similar to both autism and ligma. Most Quatistic people dont know they have quatism, the ways to know you have quatism are this; you are a fortnite tryhard, you used to play minecraft, you have a small twitch and youtube channel, AND MOST OF ALL YOU ARE A RETARDED AUTISTIC 12 YEAR OLD, (with fidget spinners in hand)