A Zenfidel is a person who uses a Zenesis Personal Nicotine Inhaler. The Zenfidel is especially noted for their ability to wait on long lists of potentially available product.
Hey man, what's that thing you're putting in your mouth that's making huge plumes of vapor?
Oh This? It's a Zenesis PV!
Dude, you are such a Zenfidel!
A person who does not adequately adhere to orthodox Zen Buddhism.
People who consider Zen Buddhism a tolerant religion have obviously not seen the mass executions of Zenfidels in Japan.