NN 

Mostly likely to fail life, really dumb

NN you’re so dumb!

NN by tammyjs May 29, 2020

NN 

NN stands for the latin "Nomen nescio", that means "i do not know the name". In Italy it was used on birth certificates when the father or the mother was unknown. "Son of NN" became a very offensive phrase and it was abolished on official certificates, but some people still use it as an insult.

"He stole my car! That son of NN!"

NN by Aracnide August 19, 2018

Nn 

Nothing, Nn is the abbreviation of nun which is the abbreviation of nothing

What did you say? Nn

Nn by Everyone knows April 1, 2019

nn 

Your name is Anna and your doing that tik tok trend right?

hi my name is Anna and I’m doing a tik tok trend

nn by Sh!i1t October 4, 2020

nn 

nn is used short for no name
a no namer is a nickname for a person that isn't known by a lot of people or in a community.

Caleb: Dude that fucking kid is such a nn.
Andrew: Ikr, he's acting like he's cool n shit.

nn by DOORSMANE October 7, 2020

nn 

Short for nickname.

My name is Jayden but my nn is Jay

nn by thecharacterwannie August 24, 2022

NN 

Short term for Neural Network.

This NN is really cool.

NN by Niklas Ulvinge May 23, 2005