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Jyutping lyun6 gam3 zung1
Pinyin luàn gàn chōng

Definitions (Wiktionary)
  1. verb, Cantonese
    to do something pointless or having no intention

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Jyutping lyun2 gam3 zung1
Pinyin luàn hán chōng

Definitions (粵典–words.hk)
  1. 語句
    亂​碰亂​撞​;​周圍​亂​噉​跑​嚟​跑​去
    to do something pointless or in an aimless fashion, to have no fixed aim or intention for an action.

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Jyutping lyun6 gam3 zung1
Pinyin luàn hán chōng

Definitions (粵典–words.hk)
  1. 語句
    亂​碰亂​撞​;​周圍​亂​噉​跑​嚟​跑​去
    to do something pointless or in an aimless fashion, to have no fixed aim or intention for an action.
Definitions (Kaifangcidian)
  1. 亂闖 – 乱闯
  2. 亂碰亂躥 – 乱碰乱蹿
  3. 到處亂躥躥 – 到处乱蹿蹿

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Jyutping lyun6 gam3 zung1
Pinyin luàn gān chōng

Definitions (CC-CANTO)
  1. (adj.) describes someone who does something without directions; (phrasal verb) to do something without thinking thoroughly.