放水屁

fàngshuǐpì
(coll.) to shart

CEDICT

colloquial

Entry Composition

1 放水 fàngshuǐ
  1. to turn on the water
  2. to let water out
  3. (sports) to throw a game
2 屁 pì
  1. fart
  2. flatulence
  3. nonsense
  4. (usu. in the negative) what
  5. (not) a damn thing