1 definition by The True Simp

Misa

The act of being a psychopathic bitch of a "girlfriend" to some high school student that kills criminals with a notebook, typically nicknamed Kira, and completely fucking up said student's plans to become some sort of God with said notebook

Person 1: Oh my god is she with him again?
Person 2: Yeah, she's such a Misa

by The True Simp October 20, 2020