best way to farm the hahhaha head?

[Festive]

just lookin for a nice head and something to do l8r, whats the best way to farm the head? and is the boss realy hard to kill or?

[Waste_of_skin]

Yes, the boss can be hard to kill, but he's even harder to spawn.

http://borderlands.wikia.com/wiki/Vermivorous_the_Invincible