when someone who is autistic does something fantastic
Dude: did you see what that autistic person just did!!

Other dude: Definitely have to go to K Mart for underwear.

Dude: that was autastic I tell ya! How much would you pay to see someone do that again?

Other dude: 'bout a hundred dollars. Ya, definitely a hundred dollars.
by Seatthell May 3, 2008
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Chris: Did you hear about Roger?
Me: The autistic kid? No what happened?
Chris: Well... lets just say he is pretty autastic.
by Lars Hoag January 3, 2012
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1) Something so stupid that it ends up being great anyway.

2) a fantastic autistic person...
(friend does something stupid) "hey man, your autastic...!"
by D13 1n a F123 April 7, 2007
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Something so great that it causes all who witness it to become autistic momentarily.
Holy shit! That was autastic...derrrr
by Infant Messiah February 20, 2008
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Adjective; given to someone to describe something amazing, that is done by someone whom is less than amazing.
Rain man drops 2 dimes and a nickel and knows that it is 25 cents, when you ask him what he can buy for that he responds:" a car." to which you respond "wow, that is autastic."
by ryan k3 February 9, 2011
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A fantastic & Autistic (or ASD related) state of being. Descriptive of the times as follows.
It's when I stim in church as a form of praise, and when my family I chose for myself accepts me as I am.

It's when Daniel Tammet recited Pi to the 22k something decimal point, when Microsoft was founded, and Temple Grandin grew up.

It's when Hollywood portrays my brain cousins accurately, and one of us gets to interrupt somebody comparing us all to Raymond Babbit.

It's when we get awards for doing something that we specialize in.

It's when our enhanced honesty gets rewarded.

It's when our speciality brings a great joy that not many at all can understand.

Autastic is when we do something awesome, like taking exactly one 3 hour flight over Rome, and drawing it in near perfect detail. Pulling a Stephen Wiltshire
by Book Lover March 19, 2010
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When said subject ( commonly on the spectrum ) expresses an exclamation/outburst of jovial positivity. Or, a matter in association with autism is said to be agreeable.
"That presentation on ADHD was autastic!"

or

"The volume is the bus is not autastic."
by Pissmunkforeskin June 10, 2023
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