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Jyutping cau3 mei6 soeng1 tau4
Pinyin xiù wèi xiāng tóu

Definitions (Wiktionary)
  1. phrase, idiomatic
    to share common interests and aspirations and get along
    (syn.) 氣味相投, 气味相投

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Jyutping cau3 mei6 soeng1 tau4
Pinyin chòu wèi xiāng tóu

Definitions (CC-CEDICT)
  1. to share vile habits
  2. partners in notoriety
  3. birds of a feather
Definitions (粵典–words.hk)
  1. 形容詞
    有​相似​嘅​氣​味​,​指​彼此​思想​作風​、​興趣​相近​,​好合​得​嚟
    people who have similar hobbies and interests, especially bad ones, go together; birds of a feather flock together; literally 'bad smells go together'
    • 我同佢都咁鐘意打機,真係臭味相投喇!
      我同佢都咁钟意打机,真系臭味相投喇!
      ngo5 tung4 keoi5 dou1 m4 zung1 ji3 daa2 gei1, zan1 hai6 cau3 mei6 soeng1 tau4 laa3!
      Both of us like playing computer games. We are really birds of a feather.
Definitions (Wiktionary)
  1. phrase, derogatory, idiomatic, of bad people
    to share common bad interests and tastes and get along
Examples (粵典–words.hk)
  1. Cantonese
    我同佢都咁钟意打机,真系臭味相投喇!
    我同佢都咁鐘意打機,真係臭味相投喇!
    ngo5 tung4 keoi5 dou1 m4 zung1 ji3 daa2 gei1, zan1 hai6 cau3 mei6 soeng1 tau4 laa3!
    • Both of us like playing computer games. We are really birds of a feather.