This is what you think when something you see on the internet is so fucked up or so abysmally cancerous that your headwill melt into nothingness and force you to pour bleach on your eyes.
When someone talks about something bad happening before it has actually occurred, thusly welcoming it to happen or in this case, speaking it into existence.
Jack: I’ve never been close to getting in a car accident.
Steve: Oh fuck, now you’ve spoke it into existence, something bad is bound to happen now. You should never be the guy that likes speaking it into existence.
physics teacher: okay, class! it's the first day of school and I want to answer any question that you may have.
me: alright, when something is destroyed, does it cease to exist or exist in a state of nothingness?
physics teacher:. *dies*
In the era of smartphones and showing-off on social media, to believe anything far-fetched, photographic proof is expected. The above phrase simply says that if one doesn't have proof, the claimed thing doesn't exist.
Also see : "Pics or it didn't happen"
A : Hey Bro, I just got a Harry Potter 1st edition book, autographed by J K Rowling herself !!
B : Pics or it doesn't exist