Abacabb is a Deathcore band formed in Sterling, Virginia in 2004.

A-B-A-C-A-B-B is cheat code which enables the blood and gore effects for the original Mortal Kombat video game.

Also, the code was in turn named “Abacabb” because of the Abacab album by the rock band Genesis, and this code was used only on the Sega Genesis version of the game.
The group officially split up in December 2010.