Cougher

[Britney]

A large hit of pot which makes you cough

[Mark Zuckerberg]

inhaling too much pot smoke in a fashion that makes you cough

[Tina]

a person who subconsciouy coughs when they are in a situation that makes them unconfortable. often coughers are government officials who dont know what to say when asked a question. but can also be a person who doesnt get out much and when they do they dont know what to do.