Yuav Paim Quav

Ann Fadiman, The Spirit Catches You and You Fall Down (New York: Farrar, Straus and Giroux, 1997), p. 108:

The Hmong have a phrase, yuav paim quav, which means that the truth will eventually come to light. Literally, it means "feces will be excreted."

Hat tip: Mrs. Turdman.