Kill Death Ratio 

The Kill Death Ratio, Commonly Referred to as K/D, KDR or Kill/Death, is the average rate of the amounts of deaths you need per kill. For instance, a KDR of 1 means that your number of death equals the number of kills you have. If your KDR is lower than one, then you have more deaths than kills, and vice versa.

Summary (may require some mathematical understanding):
If 0 < k < 1, or log(k) < 0, then you are a n00b.
If k > 1, or log(k) > 0, then you are a good player.
(k is your Kill Death Ratio)

Guy 1:
Duude! I'm l33t!

Guy 2:
What's your Kill Death Ratio?

Guy 1:
Eh...

Guy 2:
*challenging face*

Guy 1:
0.5 *attempted puppy face*

Guy 2:
LOL nub!!!!!11

Kill Death Ratio by ChromeLynx May 10, 2010

Kill/Death Ratio Whore 

A person, generally a nerd, who only plays video games for a useless series of numbers to represent your overall combat efficenty. They will usually pressure themselves when their K/D ratio goes down by 0,01. Witch is just nothing. They don't play to have fun, they don't play to win. They play to kill. That number is their obsession. Literally. Sad, I know

In Call of Duty, this ''Ratio'' is an overall distraction to exploiting the fun out of a game and only playing to make themselves feel good and brag about a measly 3-digit number. This number also expires every 365 days or so, since they'll come up with another game for the whore to play on.

Sometimes, sadly, in extreme cases, these whores will actually go into making a giant quantum physics problem madness to see when their 3-digit number will go up. By 0,01

Player 1: Hey, you mad bro? your raging all over the place and you got like 64 kills and 20 deaths!

Kill/Death Ratio Whore: GODDAMNIT!!!1 IF I KEEP THIS UP MY RATIO'LL GO DOWN AND MAH CLAN WON'T WANT FROM ME ANYMORE!!1!!

Kill/Death Ratio Whore by The Dolly LLama September 11, 2011