Just Can't Get Enough (25 player)

Just Can't Get Enough (25 player) is a dungeon & raids achievement earned for defeating Kel'Thuzad in Naxxramas on 25-player mode while killing at least 18 abominations in his chamber.

The key to this is that in the normal course of the encounter, some of the abominations waiting in the wings will not come out and attack on their own. Send someone to pull a few extras, but beware the banshees!

Trivia
This achievement is likely named after the Depeche Mode song, "Just Can't Get Enough".