KR = International Designation for the Republic of South Korea (As in Domain Names)
KR = Knowledge Representation
KR = Krypton
KR = Kingston Rovers (as in Hull)
 
Good research, but in this instance hardly the sign off that seems appropriate  

Though Kryptonite Rules has a certain ring to it  

Miss D's Kwik Response has merit although I think her exhaust might need attention  
