飛象過河 [飞－过－]

Jyutping fei1 zoeng6 gwo3 ho4
Pinyin fēi xiàng guò hé

Definitions (CC-CANTO)
  1. uninvitingly stepping into other's territory for one's benefit (slang)
Definitions (粵典–words.hk)
  1. 語句
    不守​規則​。​從​象棋​規則​而​嚟
    （literally: fly an elephant across the river）to break a rule （a reference to the rules of Chinese chess）
  2. 語句
    圍埋​一齊​食飯​時​，​唔​夾近​自己​果​邊​嘅​餸​菜​，​反而​去​夾遠​啲​嘅
    to reach across the table for food
Definitions (Wiktionary)
  1. phrase, Cantonese, idiomatic
    to get food from the far side of a dish
  2. phrase, idiomatic
    to move one's elephant across the river (a move that is against the rules of xiangqi)
  3. phrase, idiomatic
    to be unreasonable