Atrial Fibrillation: when the small chambers of the heart, where the electrical impulse for heartbeats should originate, succumb to spasms. Often benign if treated with medication.
Ventricular fibrillation: when the major chambers of the heart spasm, failing to produce sustainable beats, and threatening to exhaust themselves in flat line. Potentially lethal. Bring out the paddles.
British Fibrillation: When the English political system becomes spasmodic, and unable to produce consistent or sustainable results about much of anything.
Cause: some say Monty Python, others Martin Amis. Still others give a nod to "Gulliver’s Travels."