Day walker (autism slang, informal) — An autistic person who can blend into neurotypical society well enough that most people don’t realize they’re autistic. They can “pass” in social situations, even if it takes effort or feels unnatural.
“He’s a daywalker — he’s got autism, but he’s unlocked the social DLC, so you don’t notice until he starts explaining Austrian economics.”
An individual with Autism Spectrum Disorder (ASD). While still a form of intellectual divergence someone with autism may not have debilitating intellectual divergence, riding the line between “intellectual disability” and “neurotypical.” While the term “retard” has become very offensive, making the term “half-tard” likely offensive, “daywalker” neatly sums up ASD.
That guy is a daywalker. He’s retarded but still able to have a pretty normal life and maybe even trick a lot of people into thinking “they’re just a little weird”