Schrödinger's Can 

A beverage can that has been open for days and may or may not have a bug in it. You can't see into the can to get a clear answer, therefore the can simultaneously does and doesn't have a bug in it until you pour out the whole thing and see for yourself.

"I wouldn't drink that, man. It's been out for a while. It's a real Schrödinger's can at this point."

Schrödinger's Can by BoredCollegeKid April 6, 2016

Schrodinger's canon 

A new phenomena in Terrible writing, of which is akin to the paradox of Schrodinger's cat. The circumstances for Schrodinger's canon are the following:

An author will make a statement (presumably on their twitter) about their franchise, regarding a character, setting, event or an item that overwrites their previous statements in canon (of which wouldn't be a problem, if it weren't for the fact their franchise had technically ended, with the only new instalments being lore expansions and/or a retcon). These statements are presumably for internet Woke Points.

There are 2 known tiers of Schrodinger's canon so far, these being:
(Tier I) In which a new expansion on lore will soon be released, and the author suddenly has the opportunity to confirm their statement as canon, but chooses not to.

(Tier II) In which the statement can never be regarded as truly canon, due to either the newest instalment taking place before the statement's specimen exists, or that the newest instalment can be considered as not canon at all.

"It's sad to see Harry Potter become a victim of Schrodinger's canon..."

Schrodinger's canon by MagicAcid December 26, 2019