Used as a transitional statement(to change the subject) when someone has said enough to prove there point and does not want to elaborate further.
Guy: I could donate enough hair to make 20 wigs from the hair on my palms...
Friend: Why? I'm stupid and don't understand what you mean...
Guy: Remember?! My girlfriend is abstinent, nuff said!
Nuffin is the short form of nothing and nuff'n is the lazy version of nuffin. It is also means that you have completed everything you need to do at the beginning of the week and have nothing to do at the end of the week.
"This lug nut isn't doing nuff'n" or "I ain't doing nuff'n tonight"
you've all seen them at some stage in your lives.
they're those freaky old guys who run up to you in the middle of the city, stinking of alcohol and/or faeces, either mumbling about the end of the world or screaming obscenities or urging you to listen to their jokes.
typical physical features include a lack of teeth, grotty clothes, a bottle in a brown paper bag, shifty eyes and possibly a mutt at their heels
a group of people are walking down the street, approximately 11pm when a nuff-nuff staggers up to them and slurs:
"wwhhhy did the sshhjelly bean wanna go to sshhhkool?"
amused grins and shrugs all round
"cos he wanted to be a SMARTY!! RAHAHAHAHAHAHAAAAAA"
nuff-nuff runs away, gibberish with excitement.