poonamiWiktionary 原文英美构词拆解poo词干+tsunami词干词源说明Blend of poo + tsunami.释义名词noun1informalAn act of defecation in which an infant produces a large amount of excrement, especially one that causes a nappy or diaper to overflow; a blowout.2informalA large amount of excrement in a nappy or diaper.