Far out! TheJabroni got "misinformed mental midget" again.
Now, help me understand why "misinformed" is an insult. There's a lot of misinformation floating around in elementary-level textbooks ("Squanto and the Pilgrims were totes BFFs u guise") and more attempts to add more misinformation every day ("all of those slaves weren't slaves at all, they were absolutely 'migrant workers' who sailed to North America en masse to work on plantations for a bowl of cornmeal a day and severe torture for misbehavior, because that sounded like a great deal to them"). In elementary school, you're not really primed to question the teacher, right? Especially not in Tommy's day, when corporal punishment in school was a thing.
Conspiracy theories about The Media aside, there are also a lot of clickbait articles all over the Internet that are full of egregious bullshit ("Dermatologists Hate This Housewife Who Discovered One Simple Trick to Erasing Wrinkles"). Click on one, congratulations, you've just been misinformed. So all in, it seems impossible to make it to adulthood, or through adulthood, without coming across some sort of misinformation. Anyone who lived through the '80s may have been told that Dungeons and Dragons caused Satanists to ritually murder babies. Does simply hearing or reading something wrong make a person bad, evil, dangerous? Because that would be most of the US population. "Misinformed" as an insult is pretty much on par with using "taxpaying" as an insult.
Also, a "mental midget" would probably have a learning disability, cognitive delays, or hell, even traumatic brain injury, making them a member of a protected class. So the entire athlete population of Special Olympics (in which, no, everyone doesn't get a trophy; that's common misinformation) is insult-worthy, according to Tommy. Even getting hit on the head would make you the target of an insult... or the target of an attempt to become a dependapotamus late in life, whichever. Alas, poor Coll!
(Side note: Using "pedantic" as an insult doesn't quite work either. To become a pedant, you have to know something. Jealousy, much? Also, "pedantic pseudo" what? You accidentally a few words out, former frat dude.)