clean stoner

Basically the person who gives off stoner energy without ever smoking pot.

Or the person who always announces themselves as such so they aren’t pressured into getting high.

Example 1
Man 1: (laughing hysterically*)
Man 2: Bro did you smoke?
Man 1: NOPE! (wheezes and falls*)

Example 2
Man 1: You want some?
Man 2: Nah I’m good, I’m a clean stoner..
Man 3: Why do I ever bring you out?