zlacker

KDR, for the uninitiated, is "kill-to-death ratio":

<https://www.cyberdefinitions.com/definitions/KDR.html>

Kills are by the shooter, death is of the shooter.

>>dredmo+(OP)
The language is pretty descriptive of the phenomenon going on I thought but looks as though others disagree.

>>p3rls+fw1
It might help to note that it comes from gaming. First-person-shooters I presume.

(I'd meant to include that in my own prior comment.)