nfdl 

nfdl better known as Not Funny Didn't laugh. nfdl is a popular meme with donkey kong doing a jazzy dance saying not funny didn't laugh while edgy rap music plays in the background.

Your friend tells a very bad joke. You reply with nfdl

nfdl by cjwxxd July 31, 2019

NFDL 

Acronym for Not Funny, Didn't Laugh

Person 1: I'm so tired
Person 2: I'm stuff
Person 1: NFDL

NFDL by jimminykrickets July 15, 2019

NFDL 

Not funny didn’t laugh

Boy He makes me say NFDL

NFDL by KanyeEast88 February 20, 2022