look up any word, like cunt:
 
8.
An ethnic slur used for a Russian person. Comes from the cossack soldiers in russia.
Hey Boris! You fucking cossack!
by BillIsHere August 02, 2005
 
9.
A medieval term used to refer to ones penis and scrotum that originated in the Polish-Lithuanian Commonwealth. Popularized by the Russian cavalierly during the 14th century, the name stuck as riders complained of discomfort on horse back.

The name is derived from the Turkic word quzzaq, meaning "freeman".
This ride is really hurting my cossack.
by VermifugeRT June 01, 2005