A short, generic name used in a way such as "John Doe", but rather then to describe a generic person it is used to describe a generic, unemployed, cheap and constantly drunk person. Sometimes abbreviated simply as DL.
I was at the bar last night and this freaking Dan Lee was bugging me for free drinks. I don't even know who he was, but the cheap bastard couldn't have had a job with that shitty, stretched out t-shirt he was wearing. What a fucking DL man. Keep that shit on the DL man.