on fo nem 

on fo nem means you ain’t fucking around. if you say this then you’re a dope ass person fr.

on fo nem we slidin erryday

on fo nem by real gangshta April 13, 2021

On Fo-Nem

"Fo Nem" Fo being slang for "fore"which is short for {fo-parents} "foreparents" i.e. ones ancestors. So "on fo nem" means to swear by the graves of parents, grandparents, great grandparents, and so on back for generations which is in turn the definition of "foreparents".

Ill see yall on Tuesday bro, on Fo-Nem Imma be there.

On Fo-Nem by 86 BlackLion 86 December 26, 2023

On fonem grave 

Slang for I want juicy hard cock in my mouth rn

"He is so hot on fonem grave"

On fonem grave by Onfonemgrave February 7, 2022

on fonèm 

Sum u use instead of the n word

Bruh I swear this kids on fonèm

Or
On fonèm this kids sped

on fonèm by Fonèm dé œn May 24, 2019

On Fonem

On the homies

"I love Sub Rosa on fonem"

On Fonem by BeezaCM October 11, 2023

Fuck nigga on fonem grave 

A fuck nigga is a bitch ass nigga who never on shit and on fonem grave is swearing on a dead homie or close friend that’s in a pack🚬

Ay you a real fuck nigga on fonem grave
Logan a real fuck nigga on fonem grave

Fuck nigga on fonem grave by YoungBloodWalkE’mDown December 10, 2024

onfonem 

To swear on your friends and family or people you associate with often in gangs mostly used by GDs

Onfonem I'm finna sleep shorty ass .

Keep talking shit Imma beat yo ass onfonem.

onfonem by Kiddrevolution December 3, 2015