Deleting your starting Town Center in the Dark Age and rebuilding it next to the opponent’s Town Center or resources, so it fights their villagers and Town Center directly. It is most often done with the Persians, which is why it is usually called the Persian douche.
Persians suit it because their Town Centers have +100% hit points and work faster (+5% in the Dark Age). In a straight fight between two Town Centers, the Persian one lasts longer. The attacker’s villagers repair it while it shoots, so the player needs the wood and stone for the new Town Center before deleting the old one.
It is an all-in. Villager production stops while the villagers walk across the map, and if the new Town Center falls there is nothing left to train villagers from. Defenders answer it by pulling villagers out of its range, attacking the builders before it finishes, and moving their economy to resources it cannot reach.
Persian bonus figures from the game data for Update 185872 (September 2026), at the time of publishing.