Non sequitur (literary device)
A non sequitur is a conversational literary device, often used for comedic purposes. It is something said that, because of its apparent lack of meaning relative to what preceded it, seems absurd to the point of being humorous or confusing.
This use of the term is distinct from the non sequitur in logic, where it is a fallacy.Etymology
The expression is Latin for "it does not follow." It comes from the words non meaning "not" and sequor meaning "to follow".Usage
A non sequitur can denote an abrupt, illogical, or unexpected turn in plot or dialogue by including a relatively inappropriate change in manner. A non sequitur joke sincerely has no explanation, but it reflects the idiosyncrasies, mental frames and alternative world of the particular comic persona.
