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Jyutping caai2 soeng5 mun2
Pinyin cǎi shàng mén

Definitions (粵典–words.hk)
  1. 動詞
    主動​去​人​哋​地​盤度​挑戰​或者​騷擾​人​哋
    to invade someone's territory; to harass someone in their own turf
    • 佢主動踩上門挑戰我哋大師傅。
      佢主动踩上门挑战我哋大师傅。
      They come our turf and challenge our grand master.

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Jyutping caai2 soeng5 mun4
Pinyin cǎi sháng4men

Definitions (CC-CANTO)
  1. to harass someone; to invade someone's territory [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    踩上门仲要串串贡咁款,你当你乜嘢新丝萝卜皮呀?
    踩上門仲要串串貢咁款,你當你乜嘢新絲蘿蔔皮呀?
    • With all that arrogance on our turf, just who do you think you are?
  2. Cantonese
    佢主动踩上门挑战我哋大师傅。
    佢主動踩上門挑戰我哋大師傅。
    • They come our turf and challenge our grand master.