Wtf Is A "berserker Sword" ?

[v3001]

i always see guys running around telling me they have a "berserker sword". noone ever shows one. or they tell they kwon so who has such a thing. i dont think that such a thing exists. they say it is as long as a character is high... i dont believe that this exists. i have a real cool looking axe with fine new textures, but such a sword? i dont think so. if any of you knows about that stuff please tell me.