I posted on a similar thread, that I used the expression 'nitty gritty' until I was told where the expression came from. Language changes in response to all kinds of issues, racism being one of them. Like other posters, I live in an area with a large Pakistani community. The use of the 'shortened' form is offensive to the community. Like women, jews, irish, scots, welsh etc etc, most of them would not make a derogatory or combative response to it's use unless it was deliberately intended to offend. It doesn't mean it's ok to continue to use these kinds of words to make jokes at the expense of others.