馊水

餿水
sōushuǐ

swill that has become rotten and foul

Wiktionary

Entry Composition

1 馊 sōu
  1. rancid
  2. soured (as food)
=2 水 Shuǐ surname Shui
=2 水 shuǐ
  1. water
  2. (after a name) ... River
  3. to swim (used mostly in 会水 huìshuǐ and 水性 shuǐxìng)
  4. (coll.) lacking in substance; shoddy
  5. (bound form) additional cost; extra income
  6. classifier for washings of a garment