事九但但 [－－－－]

Jyutping si6 gau2 daan6 daan6
Pinyin shì jiǔ dàn dàn

Definitions (粵典–words.hk)
  1. 語句
    粗口​講法​「​是​鳩​但​但​」​嘅​諧​音​；​即​係​是​但​；​隨便​；​冇​所謂
    euphemism for 是鳩但但(si6 gau1 daan6 daan6); ok; fine; whatever
  2. 參看
    是九但但、是狗彈彈、事九旦旦、是九旦旦