Zarquon

Zarquon is a legendary prophet. He is worshipped by a small group visiting The Restaurant at the End of the Universe, and is old, bearded, robed, wreathed in light, has starry eyes and a crown of gold. His name is frequently invoked as a curse, specifically a substitute for "God" or "fuck", such as "Holy Zarquon's singing fish" and "for Zark's sake" in the first meaning, and "you zarking frood" and "zarking fardwarks" (meaning "fucking hell") in the second meaning.