[--]

Jyutping si6 wai4 wai3 tou4
Pinyin shì wéi wèi tú

Definitions (CC-CEDICT)
  1. to view as dangerous (idiom); afraid to do sth
Definitions (Wiktionary)
  1. phrase, idiomatic
    to view as a dangerous road; to regard as a perilous undertaking