si6 gau1 daan6 daan6事九旦旦

Jyutpingsi6 gau1 daan6 daan6

Yalesih gāu daahn daahn

Definition

Extremely careless, indifferent, or nonchalant.

slangslangvulgar

How it's used

This is a highly informal and vulgar intensifier derived from the phrase 事但, meaning whatever or casual. Inserting the expletive 九 into the middle of the word adds a strong sense of dismissiveness, annoyance, or total lack of care. It is strictly for use among close friends and should be avoided in any professional or polite setting.

Examples

nei5你zung1鍾ji3意si6事gau1九daan6旦daan6旦dim2點zou6做dou1都dak1得。

You can do whatever the hell you want.

keoi5佢jau6又si6事gau1九daan6旦daan6旦lyun6亂gam3咁gong2講je5嘢aa4呀？

Is he talking nonsense and spouting whatever again?

Common phrases

si6事gau1九daan6旦daan6旦laa1啦

Whatever the hell, just do it.

Common mistake

Do not confuse this with the standard 事但, which is neutral and simply means whatever. Adding the infix makes it aggressive and potentially offensive, so using it with strangers or superiors will likely cause significant social friction.