Taiwanese or mandarin translation please?

I don’t know the proper spelling so I’m going to spell it to how it sounds. I’m Taiwanese/American, but never had the chance to learn Mandarin or Taiwanese. When ever my mom get upset at someone she will call them a "chow cot soon". My dad always says it means something along the lines of dirty a**hole. Whenever I ask her what it means she just smiles. Thanks guys!
I’m not sure if it’s taiwanese or mandarin. The only other way I can try to spell it as it sounds is

"Chow caught sooon"

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