又要威，又要戴頭盔 [－－－－－－－头－]

Jyutping jau6 jiu3 wai1 ， jau6 jiu3 daai3 tau4 kwai1
Pinyin yòu yào wēi ， yòu yào dài tóu kuī

Definitions (Wiktionary)
  1. phrase, Cantonese, Hong-Kong, idiomatic, slang
    to wish to grab attention or be awe-inspiring, yet not be willing to take risks or get oneself into trouble; talking hawk, acting chicken