A phrase used between two autistic people to describe when one of them, does something that it blatantly autistic. Can also be referred to as a "Kermit." Things that can be described as a "Kermitable Offense" are dislike of bright lights, flashing lights, sudden loud noises, dislike of textures of food, a dislike of sensations like being wet, slimy, or itchy, or an obsessive knowledge of one very oddly specific topic (ie trains, robots, monsters, anime, etc.)
Origins are from the image of Kermit the Frog and Pepe the Shrimp with the caption: "I'm gonna be real with you chief, you might be autistic."
Person 1: "Hey did you know that there is no exact canonical description of what the map of the Island of Sodor looks like? And that it's different in many continuities?"
Person 2: "Alright, but knowing that is a Kermitable Offense."