shizukani Share definition Flag Japanese for "be quiet." Another way to say be quiet is "Sendayo," which means "shut up," making it less polite. Samantha cried "Shizukani" when Christon and Bob were arguing. shizukani by Katherine Oh May 24, 2008 0 0 Get merch Get the shizukani mug. Buy Now — $32.95 See more merch