Diasterism 

The highest form of autism. The only person to have this is the famous and well known youtuber Diasterous

Person 1: *screeching noises*
Person 2: Dude, do have diasterism or something?

Diasterism by Diasterous May 29, 2018

Dasteris 

incredibly devious and sexy

damn man your looking dasteris today

Dasteris by BurntDVD March 6, 2023

Diactorism 

The phenomenon that occurs when you realize you've been conflating two or more different actors or actresses as a single person. Most common with young actors before they make it big or character actors.

Common examples:
Shia Labeouf and Topher Grace
Kurt Russell and Patrick Swayze
Rachel Bilson and Mila Kunis
Omar Epps and Mekhi Phifer and Sean Patrick Thomas

I had serious diactorism this morning when I realized Shia Labeouf wasn't on That 70s Show. Turns out Topher Grace is a different guy.

Diactorism by Jmdickinson January 27, 2015

disasterisk 

That mental note sign you put on something to denote its not well understood and likely to fail at some point. You promptly forget about it and years later a resultant disaster occurs.

the designer had second thoughts about the usefulness of the alarm and made a mental note disasterisk to re-think it. Years later the alarm was ignored and the reactor subsequently blew up.

disasterisk by retiredengr April 1, 2011