褲骨 [裤－]

Jyutping fu3 gwat1
Pinyin kù gǔ

Definitions (CC-CANTO)
  1. the creases pressed into the trouser legs
Definitions (粵典–words.hk)
  1. 名詞
    長​褲​正反​兩面​，​用​熨斗​燙​出​嚟​嘅​摺痕
    crease on trousers, created by ironing; literally "trousers bone"