look up any word, like blumpkin:

1 definition by theconman94

 
1.
RKR
Acronym of Resource to Kill Ratio, mentioned in the Max Brooks novel 'World War Z', describing the amount of kills to the amount of munitions expended.
Unfortunately, while an M60 looks impressive, it's RKR is really low.
by theconman94 January 23, 2011