The condition upon which one sits on the toilet until their butt turns numb. This condition can travel down your legs if untreated, leaving you with temporary paralysis and unable to avoid all the people you’ve pissed off by hogging the bathroom.
Matt: Where the hell were you and why you walking funny?
Dan: He was in the shitter for an hour and didn’t wash his hands.
Joel: I got butt autism and I need a place to lie down
The specific, oddly focused mindset that takes over an MMO player during in-game limited time events, often resulting in them shunning all game content in order to just play the event and grind out every last drop of that time limited content. Also applies to mobile format games which mirror the limited time event model.
Man, I'd love to hit up the new raid, but I'm in total Event Autism mode here, I need to grind out the Summer dailies on my alts then get a few hundred more tokens to get that next cosmetic before I can call it quits for the day.