Top definition
A term used in gaming communities. Used to describe a large or important loss, specifically in online games such as Fortnite.
Man 1: Dude, I was playing Fortnite when I died in the last 2 and lost the game!
Man 2: Wow man, you took a Fat L.
by LemonTheDragon February 19, 2018
Get the mug
Get a A Fat L mug for your dog José.