Slang term similar to saying "I am awesome at everything."

Stems from the proud nature of D&D-style games where rolling a Natural 20 (a twenty straight from the die) is considered a great skill.
by Daniel Bonnizzio November 5, 2007
The proudness of rolling twenty sided dice, referring to someone who Plays D.A.D./ Dungeons and Dragons. The term originate's from the web comic Penny Arcade.
"That is because I roll twenties"
by Teflon Don Da Da© July 25, 2005