The cause of autism is unknown, but studies show that people with autism have larger brains than normal.
There are different kinds of autism. Low functioning, middle functioning and high functioning.

Some of the lower functioning people with autism have the intelligence of a baby, in which they can only scream, grab at your shirt, drool, and do other baby type stuff.

However, there are people that are autistic that are very smart, such as Bill Gates.

To people that generalize autistic kids as retarded, be quiet, because you're probably using Windows.
by Alexi March 17, 2004
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Formerly meaning a way to describe those with the developmental disorder autism characterized by a lack of social skills, extreme/low intelligence (depending on the severity), and other odd behaviours, it is now an insult/slang term used by trolls/failtrolls alike when they can't say anything better or think that it's cool to use a developmental disorder as an insult.
Normal YouTube Comment Section:

User: *commenting on a Minecraft vid*
Troll: What are you? Autistic??
User: No. ._.
Troll: Yes, autistic. lol

Oh look! It's a troll using autism as an insult! That hasn't been overdone by millions of other trolls in the last 2 years! *derp* (It is, but you should get the sarcasm implied here.)
by epic343 February 14, 2015
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its a disability, not an adjective used to describe something you find utter stupid. and no, your friend isn’t ‘acting autistic’ 💀
Guy 1: I’m autistic. Just got diagnosed.
Guy 2: That doesn’t change who you are. You’re still cool, Guy 1. :)
by jayquan. February 1, 2022
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If you're autistic, you are a certified cool guy.

- Yours truly, an autistic person.
Who invented the computer? An autistic person. Who discovered gravity? An autistic person. Who created the highest-grossing media franchise? An autistic person.

We are too powerful.
by BX56 June 19, 2022
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Although I'm autistic, I will be graduating from college next month, and I know alot about music.
by Karen Stickney May 13, 2006
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A word that fuck boys on Youtube think is an insult. They make themselves look like retards in an attempt to look "cool" on the Cringe Channel, which is full of other fuck boys with no respect for other people.
*normal guy with anime profile pic comments on Youtube video*

Normal guy: "Great video man!"
Asshole: "Shut up weeaboo faggot kill yourself you autistic bitch!!!!!11!!!"
by Antihater July 17, 2015
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A common insult used by a "troll" user who is usually socially rejected for his idiotic use of the word "autistic". And when you ask this "troll" user if they know what autism is, they'll reply by saying, "It's a disease/disorder", (they obviously are too retarded to actually do some research on this before using it as a insult). :)
Troll: HA! YOU'RE SO AUTISTIC!
Random User: Is that so? How about you search up the definition of "autistic" before you use that as an insult in my Christian Minecraft server.
by RubytheFeminist October 12, 2018
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