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Natural 20 (Nat 20): Rolling a 20 on a 20-sided die (d20) in Dungeons & Dragons. It's usually a big success, and in combat, it means you hit well and do extra damage.
Dude, I tried to charm the guard and rolled a Nat 20, and now he’s planning my wedding.
Nat 20 by Bigb3 September 9, 2025
Related Words

nat 20 baby

calamity Marcy Wu"s famous line in the show when she battles the core/moon
person: sooo.. calamity Marcy Wu..?

me: NAT 20 BABY!!!! WOOOOOOOOO!
The fastest way to fuck over a DM
DM: Roll for luck!

Person: Nat20!

DM: Fucking hell
Nat20 by FatSeal February 1, 2022
A Nat20 is a term people that play Dungeons and Dragons (DnD) use when they roll a 20 one a 20 sided die.

(A little story to go with this)
So one time in a dnd session my boyfriend was hosting, it was winter, around late november, in a world dominated by Krama(a made up species by my bf which are basically dragon furries) and the group, A anthropomorphic rusty spotted cat named alex, a purple and white halfwing krama named Rose, an unknown species of being named Lithi, and his brother Sphaler, and a yellow and white krama named Zenith (whos rose's adoptive father) were playing outside in the snow. My boyfriend set it so if you made a perfect snowball, it added 10 to the roll you got when rolling the 10 sided die. So i was Rose (who is soon gonna find out shes transmasculine, and gonna rename herself to Noxir, or nox for short) and i had rose make a perfect snowball, and aim it at zeniths crotch. Well i rolled a 10 on the d10, and with the snowball being perfect it became a Nat20. Yeah, it shouldve killed Zenith, but my bf made it so that didnt happen cause hes nice like that and it was funny as hell.
Person 1: Roll d20 to seduce the dragon.
person2/DM(dungeon master): *rolls d20 and it lands on 20* Nat20, youve successfully seduced the dragon....
Nat20 by Noxir_TheDemonling March 10, 2024