I say vaporizer but everyone says oh you mean fake cig. The damage is already done.
Ugh. Yes. I try very hard to steer the general perception of vaping away from any and all "cigarette" references, because of that very stigma. Sadly, once people hear "cig", you can see them pucker and wince.
I always refer to it as a "personal vaporizer". When people try to correct me with "do you mean one of those electronic cigarettes??" I make a face, like that's the strangest thing I've ever heard, and say, "I guess some people *insert crazy people look* call them that, but it doesn't make any sense, because..." and I launch into my sales pitch. So far, so good.