What is a “Head Canon”

Are these real? No.  Maybe.

These are head canons, head canons need a certain suspension of disbelief.

They are head canons, meaning they are only canon in the person’s head.

Head canons are used “to describe something that hasn’t yet happened, or has not be described or explained, yet it has happened/is happneing in the writers head”

So maybe these could be true, maybe JK Rowling will tell us these are totally false, however:
They are fun. 

I hope that explains everything you needed to know, if you have any more questions please ask (BUT not in anon, 99.9% of the time I don’t want to post to my blog unless it is a head canon). 

However I do put up some HP facts - real and true facts. The post will say canon. Just canon.