Hate these responses

Present pet peeve statement :

Tahu tak apa ( which is lijke so rude )

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And when I was working in Kulai, my blurr staff used to say this on a daily basis with a blank look :
Poo thung ( `dunno` in Mandarin )

I wouldn`t mind if it`s `poo thung` i`ll find out for you` tho
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