"City sewer" refers to a system of underground pipes that carry wastewater and sewage away from houses, buildings, and streets in a city to a treatment facility. Full definition
Like city sewer and industrial waste disposal systems, water is the medium required to waste products out of the body. (detoxifynow.com)
The cause is unclear, but rising ocean levels and nitrogen dumped from the New York City sewer system are likely culprits. (sciencemag.org)
There's the pyrokinetic ex-gangster Chato Santano, a.k.a. El Diablo (Jay Hernandez); a boomerang - wielding guy named... Boomerang (Jai Courtney); a surly man with a scaly skin condition who dwells in city sewers, appropriately called Killer Croc (Adewale Akinnuoye - Agbaje). (digitalshortbread.com)