無三不成幾 [无－－－几]

Jyutping mou4 saam1 bat1 sing4 gei2
Pinyin wú sān bù chéng jǐ

Definitions (粵典–words.hk)
  1. 語句
    一種​普遍​諗​法​，​指​「​幾​」​表達​細過​十​嘅​正​數​嘅​時​候​，​應該​要​等​於​或者​大過​3
    a general thought that a number less than 10 should be greater than or equal to 3 to be 幾gei2