A person that is half chinese and half native american (if there is someone that is). This person is characterized by squinty eyes so they view the world in widescreen, they also has a slightly tanned skin and like to wear mocassins.
When someone acts like a completesocial outcast in the weirdest ways. Squinto mode is used to describe someone who has an otherworldly lack of social behavior. They are like a child, doing the weirdest things in public because they don't know better.
Person 1: Is that person scooping their asshole with 4 fingers and sniffing it afterward??
Person 2: Ain't no way, he going squinto mode 💀💀