ex-smoker

Someone who used to smoke cigarettes but has now quit.

She smoked a pack a day for 25 years, but she quit last May. Now she's an ex-smoker.

Ex-Smoker Complex

When an ex-smoker tries to save the rest of the smoker community by preaching their "born-again" non-smoker ways.

Mark: Damn, James is such an asshole ever since he quit smoking last year.
Dave: Yeah, I can't stand him anymore, he has an Ex-Smoker Complex.
Mark: Oh shit, here he comes...

James: DID YOU KNOW THAT QUITTING SMOKE NOW YOUR HEART RATE RETURNS TO BLAGAGAHAGBLAGBLAHBLAHBARG