逞其口舌

chěngqíkǒushé
to boast of one's quarrels to others (idiom)

CEDICT

Entry Composition

1 逞 chěng
  1. to show off
  2. to flaunt
  3. to carry out or succeed in a scheme
  4. to indulge
  5. to give free rein to
2 其 qí
  1. his
  2. her
  3. its
  4. their
  5. that
  6. such
  7. it (refers to sth preceding it)
3 口舌 kǒushé
  1. dispute or misunderstanding caused by gossip
  2. to talk sb round