Schrödinger

A Schrödinger is someone who decides what they meant by something only after seeing the reaction to it. A good example of this is Schrödinger's Douchebag, which is commonly defined as "Someone who says something bad, and decides weather or not it was a joke after seeing the reaction to it." Another example is someone who sends a risky text and says they accidentally sent it to the wrong person if the reaction to the text is negative.

Person One: This person asked me out and said it was a dare when I rejected them.

Person Two: That definitely wasn't a dare, they were just being a Schrödinger.

Pull a Sayori

To kill yourself via hanging, in reference to the game "Doki-Doki Literature Club!".
Note: the phrase still debatably works as a substitute to suicide, but it is most commonly used just as a substitute for hanging.

I swear to Christ you are gonna make me pull a Sayori.

LMTO

The old english version of "LMAO", which means "laughing my tush off". Most commonly used in the early internet, and was replaced with LMAO.

That's so funny, I'm LMTO