Often used on online forums and the Star Wars Galaxies Bloodfin community.
Pegasus, a member of a guild Dread would scream in ventrilo during PvP and when people asked him what he said, he said HACB was an abbreviation for
Nexis made this term popular in the bloodfin community after
using it excessively on the forums.
Lol, vass. You sucked 2 cocks last night while brisc licked your dog's ass. HACB!