Churma is a euphamism for a derogatory word in hindi. It was coined by certain dudes while having the dish churma in a dhaba. It is usually used as a substitute for the word 'Chutiya'. The word churma is very useful especially when girls or elders are around.
He What' up churme?
Kya kar raha hai churme??
Dekhta kya hai be churme? Duu kya ek rakh ke?
Abbe chup chaap khaa na churme... !!!