From Compsci.ca Wiki
An Emo Neko is a cat which is quite disheartened by the world and sometimes feels lonely or depressed. The name was conceived when compsci.ca's local resident Nick was being made fun of on IRC. Apperently he is emo looking and cat-like. The origanal name was emo cat but was quickly changed when Dan came up with Emo Neko. For more information see the new compsci.ca comic written by Mackie Drew.