Nerf Definitions
: Verb. To reduce the effectiveness of a champion's kit across the board so that the champion is near-worthless.
: Verb. To rework a champion's kit in such a way that it is generally less effective, has less overall appeal, and becomes extremely niche in application. Not necessarily underpowered, but commonly viewed as such.
:Verb. To alter a single skill on a champion so significantly that it causes the champion's success to be entirely team-dependant because it has no ability to make plays on its own.
Seriously, why was a gank-reliant jungler that hasn't been problematic in over two years nerfed in such a way that his early ganks are somehow less effective than a gank coming from jungle Mordekaiser?