Nickname that Jacksepticeye uses in Among us. It originates from a video that Pewdiepie bought from fiverr where Jesus accidentally mispronounces Jacksepticeye2 as "Jackspedicey2"
'Spedistic' is an adjective. It is defined as dumb, special ed, and unintelligent. It can be a synonym for 'sped' or 'slow'. 'Spedistic' can describe a person, action, or thing.
Example #1:
You: "Why did you pour hot tea into a plastic water bottle?"
Your Sister: "I didn't think it would melt!"
You: "You're so spedistic!"
Example #2:
Your Friend: "Ms. Smith gave us extra homework because one person was talking!"
You: "Bruh she's literally spedistic!"
Spedicle commonly mistaken for the term sped, is an unintelligent dumb ass who believes everyone maintains a friendship with them when everyone actually believes they are a gay/lesbian prostitute and takes pleasure in laughing at them behind their back.