虧佬褲 [亏－裤]

Jyutping kwai1 lou2 fu3
Pinyin kuī lǎo kù

Definitions (CC-CANTO)
  1. long johns [colloquial]
Definitions (粵典–words.hk)
  1. 名詞
    禦寒​用​嘅​貼​身​長​內​褲​，​通常​係​棉​或者​羊毛​造​嘅​（​虧指​孱弱​，​含有​嘲笑​住​呢種​保暖​內​褲​嘅​人​身子​虛​弱​嘅​含意​。​）​（​量​詞​：​條​）
    long cotton or wool underwear; long-johns; leg warmers; literally: weak man pants
Definitions (Wiktionary)
  1. noun, Cantonese
    long johns