To hypothesize a situation so much, that it actually happens
Person 1:I bet the red team is gonna win this one.
Person 2: Don't speak into existence! The red team does nothing but win, they need to lose this one.
by wowUcantplugitinsomewhereweles February 25, 2018
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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.
by Nigga Jew 69 July 7, 2022
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