口若懸河

口若悬河
kǒuruòxuánhé
  1. mouth like a torrent (idiom)
  2. eloquent
  3. glib
  4. voluble
  5. have the gift of the gab

CEDICT

eloquent; glib; voluble; having the gift of the gab

Wiktionary

比喻說話滔滔不絕，能言舌辯。《金瓶梅．第三三回》：「但遇著人，或坐或立，口若懸河，滔滔不絕，就是一回。」《儒林外史．第四回》：「知縣見他說的口若懸河，又是本朝確切典故，不由得不信。」也作「懸河瀉水」。

重編國語辭典

一直不停說話，如瀑布流瀉不止，形容能言善辯

維基詞典

Entry Composition

1 口 kǒu
  1. mouth
  2. classifier for things with mouths (people, domestic animals, cannons, wells etc)
  3. classifier for bites or mouthfuls
2 若 ruò
  1. to seem
  2. like
  3. as
  4. if
3 懸河 xuánhé
  1. "hanging" river (an embanked one whose riverbed is higher than the surrounding floodplain)
  2. (literary) waterfall
  3. cataract
  4. (fig.) torrent of words

Related entries

出口成章 chūkǒuchéngzhāng
  1. (idiom) (of one's speech) eloquent
  2. articulate
善辯 shànbiàn
  1. eloquent
  2. good at arguing
舌燦蓮花 shécànliánhuā
  1. (idiom) eloquent
  2. entertaining in one's speech
雄辯 xióngbiàn
  1. eloquent
  2. oratory
  3. rhetoric
雄辯如銀，沉默如金。

Speech is silver, but silence is golden.

Source: Tatoeba

善言辭 shànyáncí
  1. articulate
  2. eloquent
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