x1 is a cloaca of x2.
Common orifice of the urinary, genital and digestive systems in some animals. Present in reptiles, amphibians and monotremes (klo'akymabru?), among others. See also ganxo, kalci, pinxe, pinji zargu; respa, banfi, since, cipni. Proposed zevlyrafsi: klo'ak.