Arjuna is the third of the Pandavas, the sons and princes of Pandu, who with Krishna, is considered to be the hero of the Hindu epic Mahabharata. That was copied of of Wikipedia (yay for citing sources)
So basically, Arjuna is a mysterious and hard to understand hero. (who likes ducks)
"Arjuna is really hard to pronounce the first time you say it, but after a while you have no problem"