a lemon ate it
CNM means f**k your mom, and it’s the best way to tell someone to go f**k themselves while also telling them to go f**k their mom.
He said CNM when I told him to stop being a f***ing idiot.
She sent me a DM saying ‘CNM’ because I messed up her game.
He yelled ‘CNM’ at me like I had stolen his mom.