满口脏话

滿口髒話
mǎnkǒuzānghuà
  1. to pour out obscenities
  2. filthy mouthed

CEDICT

Entry Composition

1 满口 mǎnkǒu
  1. a full mouth of (sth tangible)
  2. to have the mouth exclusively filled with (a certain language, lies, promises etc)
  3. (to agree etc) unreservedly
2 脏话 zānghuà
  1. profanity
  2. obscene language
  3. speaking rudely