A reoccuring message board phenomenon which has a knack of attempting to become cool. Often makes mistakes in doing this, by adapting names which involve "X-treme" or bullshittery to a similar effect.
Also appears to be very protective about it's identity when two different boards interact, and tries to make sure it's not recognized by either side.
"Oh, hi Denium."
"Man, you're such a fucking Denium."
"I just banned a Denium."
"Deniums! Deniums everywhere! They're driving me mad!"
"Aren't you that Denium from that other board?"
"You sure are acting like a Denium."