I tied it YAY ME!!!!!!!! But what is a headcanon?

"(Headcanon) Used by followers of various media of entertainment, such as television shows, movies, books, etc. to note a particular belief which has not been used in the universe of whatever program or story they follow, but seems to make sense to that particular individual, and as such is adopted as a sort of "personal canon". Headcanon may be upgraded to canon if it is incorporated into the program or story's universe." Urban Dictionary

So basically headcanon means your own interpretation of a character. The background ponies are good examples for a succesful headcanon, for these are laregly recognized and/or accepted by the MLP fandom. Take a look at Lyra's hand-fetish, Colgate's toothbrush obsession, The Dr. Whooves series, or Vinyl's and Octavia's relationship, and even the Trollestia/Molestia stuff: all headcanons, like the various shippings, and the fanfictions. If you have an idea, that differs and has not been shown or mentioned or reffered to in any way in the show (the canon), you have a headcanon.

(Even your OC is a headcanon in some ways, but I was thinking of more complex headcanons, like an idea for an episode, idea for a villain, idea for a setting, ideas for a character's personality that has not been shown in MLP, etc.)

SOARIN AND RAINBOW DASH IS THE BEST SHIPPING EVER. No questions asked. :)

Lol that Nope picture says BonBon - THIS IS MY LYRA! MYYYYYYYYYYYY!

Derpy is in mane 7 and Dinky is the 5th CMC. That's my headcanon...well, a part of it

???????????????????

I explain above what is a headcanon exactly.