whats so dirty about kahka?

[Lawl]

my friend accidentally types kahka and they wont tell me what it is and told me to search it and i didnt find anything and they say its dirty or something

[Ocean Eagle]

It means Siht or Poop.

I think it's a bastardisation of the Urdu or Hindi word for the same. Probably brought back from India by returning British soldiers during the Raj. Many words in current use were brought back this way. Bungalow is one that springs to mind.