Not exactly. Headcanon is, and always has been, a fandom term for someone's personal take on/interpretation of canon material. While that can include ships, it can also cover things as simple as what someone feels happened after or in-between an episode, or what a fan thinks a character's fave taste in music might be, or a back-story for a character that doesn't have one... even something small like how the Turtles manage to get money for pizza. A character might be shown to die on-screen but someone has a headcanon that they didn't actually die, just were terribly injured, for example - so it can extend to AUs in some instances.
If enough other fans share that headcanon and/or it shows up frequently in fanworks, then it becomes fanon - for example, Draco Malfoy often wearing leather pants in fanfiction.
There is some bleed-over between headcanon and fanon because fandom is, by its nature, interactive and therefore organic and always growing.
__________________
Creator of the Technodrome After Dark Discussion Group. PM for an invite (must be over 18 - no exceptions).
|