Headcanon
What does Headcanon mean?
Headcanon is a fan's personal interpretation or belief about a story or character that is not officially confirmed in the source material.
Headcanon used in a sentence
“Her headcanon is that the grumpy side character secretly runs a bakery between missions.”
This example shows the term in context rather than treating the definition as a literal word-for-word substitution. Slang often depends on tone, audience, and the conversation around it.
How do you use Headcanon?
Fans share headcanons about relationships, backstories, personalities, and small details that the official story never addresses. A headcanon is understood as personal, though popular ones can become widely shared 'fanon.' People also use the word jokingly for assumptions about celebrities or friends.
Where did Headcanon come from?
The word combines 'head' and 'canon,' meaning canon that exists in a fan's head. Know Your Meme traces it to at least July 2007 on LiveJournal, and it became widely used across Tumblr and other fan spaces around 2010.
Common variations of Headcanon
head canon
An open-spaced spelling of the same word.
Headcanon: frequently asked questions
What is the difference between headcanon and canon?
Canon is what the official story establishes, while a headcanon is one fan's unofficial interpretation.
Can a headcanon become canon?
Occasionally creators confirm details that fans had already imagined, which turns a headcanon into official canon.