打頭炮

Simplified: 打头炮

dǎtóupào ㄉㄚˇ ㄊㄡˊ ㄆㄠˋ

    • to be the first to speak at a meeting or discussion

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
fire the first cannon
Meaning
To be the first to speak at a meeting or discussion.

Sources