Basically when something Fanon like a theory, character, idea, etc gets introduced to a fandom that people think that the Fannon character, theory, idea, etc is canon. Hence the name CANON FANON EFFECT. A "canon" theory, character, etc.
There are two variations to look at this effect. Oblivious or Disregard
Disregard: When people are aware that this character, theory, idea, etc isn't canon. But treat said character, show, theory, idea, etc as if it was canon.
Example: The Creepypasta Fandom often draws Slender man with the operator symbol in the background or most times anything really related to Slender man and sometimes even referrers to it as the operator. Even though the fandom knows that the operator and Slender man aren't the same entity.
Oblivious: When someone isn't aware that said idea, theory, character, etc isn't canon.
Example: The Creepypasta fandom thinks that Eyeless Jack has an origin in which he was used in a sacrifice to become a monster. Even though he never had an origin, to begin with.
There are two variations to look at this effect. Oblivious or Disregard
Disregard: When people are aware that this character, theory, idea, etc isn't canon. But treat said character, show, theory, idea, etc as if it was canon.
Example: The Creepypasta Fandom often draws Slender man with the operator symbol in the background or most times anything really related to Slender man and sometimes even referrers to it as the operator. Even though the fandom knows that the operator and Slender man aren't the same entity.
Oblivious: When someone isn't aware that said idea, theory, character, etc isn't canon.
Example: The Creepypasta fandom thinks that Eyeless Jack has an origin in which he was used in a sacrifice to become a monster. Even though he never had an origin, to begin with.
Guy1: Hey man your drawing sans eye wrong. It supposed to be glowing with a flame.
Female1: Actually sans never had shown to have a glowing or flaming eye, just one that switches colors really fast.
Guy1: Wait, really? then why does the fandom draw it whenever he's mad or using gaster blasters?!
Female1: Must be the Canon Fanon Effect.
Female1: Actually sans never had shown to have a glowing or flaming eye, just one that switches colors really fast.
Guy1: Wait, really? then why does the fandom draw it whenever he's mad or using gaster blasters?!
Female1: Must be the Canon Fanon Effect.
by Mcfat10 March 29, 2020
It is said by famous tiktoker @loamfy on every meme of a game called criminal case, if you’re gonna use it credit tiktoker @loamfy
by Loamfy February 11, 2023
A thicc boy named Owen who canon has fantasies about. They have a very steamy relationship because both are quite busty.
by Humptydumpty696969 October 08, 2021
Not necessarily canon, but canon in your own perspective. Your own alternate perspective of what’s canon.
In my head-canon, Mario in the original Donkey Kong games from the early ‘80s is actually the father of Mario and Luigi. That Pauline is probably a different Pauline. Maybe it’s modern Pauline’s mother. The second Mario in Donkey Kong Jr. is Mario and Luigi’s random uncle.
by Excrushman March 19, 2023
A canon pairing in fiction is a couple accepted as official by the author and a large part of the fanbase.
by Lahavas October 27, 2021
Examples of male canon events include:
>drawing comics as a kid
>playing video games with the boys
>fumbling your first crush
>realizing you hate being in school
>fantasizing about saving your crush from some violent entity
>holding the flashlight for your dad
>graffitiing something
>realizing you gotta hit the gym
>wanting to start a YouTube channel
>realizing that you’ll never be good enough at your favorite sport to go professional
>hating your first job
>realizing how badly you need to fix your life at 3 am
>watching your friend group evaporate after HS
>living in an apartment and refusing to decorate it
>wondering if you’d look better bald
>drawing comics as a kid
>playing video games with the boys
>fumbling your first crush
>realizing you hate being in school
>fantasizing about saving your crush from some violent entity
>holding the flashlight for your dad
>graffitiing something
>realizing you gotta hit the gym
>wanting to start a YouTube channel
>realizing that you’ll never be good enough at your favorite sport to go professional
>hating your first job
>realizing how badly you need to fix your life at 3 am
>watching your friend group evaporate after HS
>living in an apartment and refusing to decorate it
>wondering if you’d look better bald
by WeAlsoDoSomeTrolling May 08, 2025