A play on the popular term "necrobump," it is the act of commenting or liking a dormant post on a forum, Facebook, etc to bring it to the top of the forum list. Often a tactic of trolls attempting to control a forum..
Wow look at the photo Andrew just liked on Facebook, it's from 2007! He must have a serious case of necrotizing bumpititis..
by the_Domski February 19, 2014