The act of smoking so much Weed you become temporarily Autistic.
Or the potential risk associated with some strains of weed.
"Last night I got so stoned I became Wautistic. It took me 5 minutes just to open the door for the pizza guy. I blankly stared at him through the glass but couldn't make eye contact."
"I only smoke the dankest strains, you know the strains that have a risk of Wautism."