n00b-speak for "why hello there". Used by n00bs, posers, text-messegers, and other mental defectives.

Yhelothar bob, how are you doing today?
Yhelothar! I didn't expect to see you here my friend

Pronounced: Yello-thar
Internet slang, translates into "Why hello there". Usually used in video games, forums, or instant messaging. It is the new, better way of saying 'hello' or 'sup'. Sometimes used in surprise.