spectrumy

Someone who is possibly autistic (on the spectrum for sure)

Guy 1: Hey you seen that kid before?
Guy 2: Yea, he looks spectrumy to me

Spectrumy

Adj. A term used to describe a person you believe to be somewhere on the pervasive developmental disorder (autism) spectrum but you’re not sure where.

Sydney: “I really don't like that Adam guy.”
Nick: “He's legit autistic. Pretty sure. It's been awhile since I’ve seen him but I'm pretty sure. He’s spectrumy.”