splitsville

From split +‎ -s- +‎ -ville, evoking a fictional town.

splitsville (uncountable)

1. (informal) The situation of breakup or divorce.
   • 1986 April 12, Robert Storem, “Who Will Do the Dishes?”, in Gay Community News, page 15:

     A female couple I know were on the edge of splitsville until they discovered the wonders of Paperama.

splitsville (not comparable)

1. (informal) Separated; no longer together as a romantic or sexual couple.