republican marriage

noun1

1. •
   (historical) An alleged form of execution during the French Revolution in which a man and woman were tied together naked, exposed to public view for a time in this condition, and then stabbed, shot, or thrown into a body of water to drown.

   • "By degrees, daylight itself witnesses Noyades: women and men are tied together, feet and feet, hands and hands; and flung in: this they call Mariage Républicain, Republican Marriage." — 1907