What is "blothar"

Blöthar is the current lead vocalist, and occasional bassist, in the metal band Gwar. He appears as a stout (hence his name) humanoid girded in Pagan/Roman-style armour with thorny antler-esque wings, horned helmet and blue-purple fur collar and loincloth. Gwar's appearance at the 2014 Chicago Riot Fest debuted an udder that sprays fluids on the crowd, much like the "Cuttlefish of Cthulu" penile attachment sported by the late Gwar singer Oderus Urungus. Blöthar is usually portrayed wielding a wooden shield sword or a battle-axe.