make shishi
n.— «Long about Silver City I realized I had to, “make shishi,” as they say in the Islands, so I shouted through an open window to the driver, “Yoo-hoo, excuse me, but I think I have to go shi-shi!”» —“Joe rides with Lance for a day in France, or not” by McAvoy Layne Bonanza (Incline Village, Nevada) July 15, 2005. (source: Double-Tongued Dictionary)