The one time, when in large groups, a certain person with Crohn's disease farts. This releases many toxins into the air thus making it the special time where no one can breathe.
Oh my God! David let out a huge Crohnie Special! RUN!
A member of a group of friends or associates, usually loosely organized, brought together by common circumstances or activities. Members are often prone to a mischievious group mentality.