駁腳偵探 [驳脚侦－]

Jyutping bok3 goek3 zing1 taam3
Pinyin bó jiǎo zhēn tàn

Definitions (粵典–words.hk)
  1. 名詞、舊式、香港
    舊時​香港​警察​隊​，​能夠​用​英文​直接​同​洋人​警官​溝通​（​或者​打小​報告​）​嘅​華​人人​員​或線​人
    in old days, local officer or mole who could communicate with foreign police officers in English
  2. 近義詞
    鬼頭仔