To do amazingly or surprisingly well, deriving from Dungeons & Dragons, where a roll of 20 on a twenty-sided die nets an automatic success, usually done with and recieved with gusto.
"These dudes were in my face and I punched this guy in the face. Nat 20 and he was down."
104👍 7👎
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!
1👍 1👎