破天荒

pòtiānhuāng ㄆㄛˋ ㄊㄧㄢ ㄏㄨㄤ

    • unprecedented
    • for the first time
    • never before
    • first ever

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
breaking the heavenly wasteland
Meaning
Something happening for the very first time, usually a surprising event. Neutral or lightly humorous; like "for the first time ever."

Sources