屁事

pìshì
  1. (vulgar) trifling matter
  2. mere trifle
  3. goddamn thing
  4. goddamn business

CEDICT

vulgar

Entry Composition

1 屁 pì
  1. fart
  2. flatulence
  3. nonsense
  4. (usu. in the negative) what
  5. (not) a damn thing
2 事 shì
  1. matter
  2. thing
  3. item
  4. work
  5. affair

classifiers: 件, 樁, 回