You know how tanks taunt? what would they say to a certain boss to get their attention, something they would say that would be so offensive that they want to kill that person first?
"You are Justin Bieber's greatest fan"
i've always imagined the DK using death grip would say something along the lines of scorpion's taunt in Mortal Kombat "GET OVER HERE"
Maybe they whip out their thing and the boss gets angered at his own small genitals
Well considering warriors can only taunt when in defensive stance I would imagine it would be something such as
Hey you big dumb smelly monster thingy I will totally pwn you ....What ...No I am not cowering behind this shield I just like looking at my reflection in it instead of your big dummy face
Imma firin ma lazor!!!
Tank : Guess what?
Boss : What...?
Tank : Monkey butt!
Boss : FFFFFFFFUUUUUUUUUUUU-
Yeah... something like that :P
Your mother jokes...
Also this works http://www.youtube.com/watch?v=9V7zbWNznbs