毅進制 [－进－]

Jyutping ngai6 zeon3 zai3
Pinyin yì jìn zhì

Definitions (粵典–words.hk)
  1. 名詞、潮語
    揶揄​香港​警察​（​借代​做​「​毅進​仔​」​）​報細反​政府​遊​行人​數​所用​嘅​計​法
    "yijinary", a mockery of Hong Kong Police Force's giving a falsely low figure of participants of protests