1 definition by Spoony Bard

Top Definition
When someone rolls a 20, on a twenty-sided die. This doesn't include modifiers.
The only natural 20 we rolled was when Charlie passed me the fucking dice.

We rolled about twelve natural ones, but not a single natural 20.
by Spoony Bard December 05, 2006

Mug icon
Buy a natural 20 mug!