dishwater

/ˈdɪʃˌwɔtər/
noun
  1. The water in which dishes have been washed, often dirty and soapy.
    • After washing all the pots, the dishwater was cold and greasy.
    • He poured the gray dishwater down the drain.
    • The cat tried to drink from the bucket of dishwater.
  2. Something that is weak, dull, or unappealing, often used in comparisons (e.g., 'weak as dishwater').
    • His speech was nothing but dishwater—boring and forgettable.
    • She described the movie as dishwater, with no excitement at all.
    • The coffee at that café is as weak as dishwater.
Synonyms
What does "dishwater" mean? | whatsthatwordmean | whatsthatwordmean