Questions about example sentences with, and the definition and usage of "Potenuse"

A: It's not an official word. It comes from "hypotenuse."

"hypotenuse" means, "the longest side of a right triangle."

A: "high on potenuse" doesnt have any meaning. The only reference to this that I'm aware of is from a sketch from the comedy duo Key and Peele. In that case it's just a play on words and is referring to [high on pot]-enuse and makes it sound like the word hypotenuse which is the longest side of a triangle. High on pot just means to be under the influence of marijuana

A: It's like saying high on "pot" which is basically a drug.
And since it sounds like the math term hypotenuse, people say "I'm high on potenuse."