Like so many superheroes, Teenage Mutant Ninja Turtles live in a sewer, the system that carries waste and water from buildings, houses, and mad scientists’ labs. The water that runs down a storm drain also ends up in a sewer.

After you take a shower, or wash dishes, or flush the toilet, that used waste water runs through pipes away from your house. It travels either to a small septic system, or to a larger, city-wide sewer system, where it's treated to make it safe and clean enough to release into the environment. The origin of sewer can be traced to the Old North French sewiere, "sluice from a pond," or "something that makes water flow."

Definitions of sewer
  1. noun
    a waste pipe that carries away sewage or surface water
    synonyms: cloaca, sewerage
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    type of:
    drain, drainpipe, waste pipe
    a pipe through which liquid is carried away
  2. noun
    misfortune resulting in lost effort or money
    “all that work went down the sewer
    synonyms: gutter, toilet
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    type of:
    bad luck, ill luck, misfortune, tough luck
    an unfortunate state resulting from unfavorable outcomes
  3. noun
    someone who sews
    “a sewer of fine gowns”
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    baster, tacker
    a sewer who fastens a garment with long loose stitches
    sewing-machine operator
    someone who sews by operating a sewing machine
    a sewer who tucks
    type of:
    someone who does work (as sewing or embroidery) with a needle
Word Family

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