(n.) a clumsy person who goes about in a haphazard manner, bumping into people and things; someone who works blindly without a clear direction or plan, like a headless chicken
Definitions (粵典–words.hk)
名詞
話人行路唔穩,亂衝亂撞 to have unsteady gait, to bump around haphazardly
名詞
做事冇計劃 used to describe someone who acts without thinking, or fails to plan properly
Definitions (Wiktionary)
noun, Cantonese
walking unsteadily, as a mad chicken