When on hearing the sound of the number π, an autistic person or idiot savant thinks of a slice of a cake or pizza instead, or equates either word for something else that is unmistakably alien or paranormal.
Just as the man who mixed up his job for his life, Prof. Paulos, who mildly suffers from schizophrenia, occasionally sounds like the man who mistook pi for pie.
An action similar to miswave, but instead of one waving when one's name is called, one looks all around trying to find the person who called it, causing an awkward moment.
Ryan D: *walking at school*
Random person from afar, not talking to Ryan D: Hey Ryan! Come over here!
Ryan 1: MisLooks *looks around frantically*, trying to find the caller of his name, but instead ends up with people looking and laughing at his misfortune.
Another form of the word mistake. Why would you mistaken something when you can mistoke it? Mistoke is the most common way for stoners/retards to say mistaken.