~Churkin. Interesting name. The word churka in Russian means wood chip or some one who isnt important, a nobody.~
In fact churka as applied to a human being means an Arab, Central Asian or Caucasus native. An ethnic Muslim in short. No other meaning. It is a huge N-word and considered racist. I think it is rarely used even for a wood chip anymore.
I got it from an old source. Thanks for the up date.