Condemnation Cough
This is the fake cough that non-smokers give to someone smoking, even in an outdoor setting. It is generally characterized by one dry cough and accompanied by a dirty look.
Fred: Hey, I think Mike is getting sick. I was outside smoking, and he walked past me coughing.
Bill: Naw, man, that's just a condemnation cough.
Bill: Naw, man, that's just a condemnation cough.