A Cloaca
- (sometimes figuratively) A sewer.
- (zoology) The duct in reptiles, amphibians and birds, as well as most fish and some mammals, which serves as the common outlet for urination, defecation, and reproduction. https://en.wikipedia.org/wiki/Cloaca
- An outhouse or lavatory.
- (anatomy) A duct through which gangrenous material escapes a body. Cloaca (embryology) - Wikipedia