noun, verb, slang ·Moderate ·College level

Definitions

Noun

1. 1
   Elements and interpretations of a fictional universe accepted by an individual or small group of fans, but not necessarily found within or supported by the official canon. countable, slang, uncountable

   "In my own headcanon of Rocky IV, Ivan Drago is a Russian Mafia enforcer instead of a Red Army Captain."

2. 2
   A personal version of the fantasy world from popular media wordnet

Verb

1. 1
   To interpret in the form of a headcanon. slang

   "I headcanon her as gay."

Example

More examples

"According to my headcanon, Luke Skywalker is a gay ace."

Etymology

From head + canon. First attested in c. 2007.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.