口乾舌燥 [－干－－]

Jyutping hau2 gon1 sit3 cou3
Pinyin kǒu gān shé zào

Definitions (CC-CEDICT)
  1. lit. dry mouth and tongue (idiom); to talk too much
Definitions (Wiktionary)
  1. phrase, idiomatic
    dry mouth and sore throat; having spoken so much that one's mouth and throat become thirsty