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2.
RPK
A common russian automatic rifle, often associated with the AK74su. Highly comparable to the SAW light machinegun.
I got RPK's, AK74's, AK47's, M4A1's, M40A1's, M82's, and a Dragunov.
by Detranova July 29, 2003
 
1.
rpk
RPK for Random Player Killer, for online games, meaning a player who enjoys randomly killing other players for no reason other than enjoyment of the killing itself.
Dude, I hate LoD, they are nothing but a buch of random RPKer's. All they do is gank people.
by [LK]Myrik December 10, 2004
 
3.
RPK
Another wildly inaccurate, excessively loud Soviet gun similar to the ak-47
Commonly the rusher's weapon of choice second to the AR on America's Army
HAHA I pwn'd half your team with my RPK.
by Doraemon1210 April 25, 2005