1. (noun): a person who attempts to prevent cigarette or cigar smoking in public. Especially applicable in locations (bars, pubs, patios) where smoking is allowed.
2. (noun): A self-righteous and discourteous non-smoker who attempts to shame smokers by coughing loudly when walking past or rudely insisting that smokers are dirty, disgusting addicts who are killing themselves and others.
3. (noun): a person who offers unsolicited health information about the effects of smoking to complete strangers.
See also: Dark Lord, cigarette.
"When I lit up on the patio, some old lady asked me to stop killing her."
"Bloody fresh-air fascist!"