(1) A lie or half truth perpetuated by an individual which is intended to cause comedic drama within a particular social group. Most often this entails statements which make the group think less of the person, however it does rise to the level to which the group confronts the individual. A Rickerism usually serves to entertain the individual who creates it but often slowly discredits others in the group without their knowledge.
(2) A lie or half truth perpetuated by an embarrassed individual in a social setting which is intended to redirect attention onto another individual not in the group to defend themselves.
At the party Mike was asked about his love of boy bands and used a rickerism when he quickly stated Eric, an individual not at the party, was a member of a boy band.