Translates to "are you dee one too see four dee bee jay".  If that isn't obvious enough, I'm very sorry for you.
<randomChatGuy> rud12c4dbj
<randomOtherChatGuy> lol
<randomOtherChatGuy> lol
by Nathan T December 26, 2008
 Get the rud12c4dbjmug.
Get the rud12c4dbjmug.  Get the rud12c4dbjmug.
Get the rud12c4dbjmug.