brithish slang for uncool, loser, tacky, and strange, used often for people with less swag than you.
"Alondra and erika they got swag there sooooo not naff"
by abcccccccccccccccccccccccc September 14, 2011
Not Appropriate For Facebook.

Acronym used when someone posts something inappropriate on your Facebook page.
Example 1

Friend: Dude, you were so hammered last night. I cannot believe you hooked up with Brian's girlfirend...

You: NAFF, Man!

Example 2

Friend: Ha Ha, I tagged you in that pic of us smoking weed out of the bong we made out of an apple.

You: NAFF man! Work people are on here!
Example 3

Friend: Everyone, please pray for my grandmother to have a bowel movement... it has been a week!
You: Please, that is sooo NAFF...

by joshuam121 April 11, 2010
Sucky. Crap. Plato would say it is something very low from its ideal form.
That car is so naff, it doesn't have a reverse and it backfires.
by Bubba Zanetti April 05, 2005
adj. Not very good, but not bad enough to warrant a passionate dismissal.
The White Horse mate, nah it's naff - you wanna get yourself down the King's Arms - full of totty on a Friday night
by Shevek September 22, 2002

1) Of poor quality, useless

2) Unfashionable
"You just sit there and vegetate! Naff!
by Daisy May 12, 2005
Nothing in a deragatory way.
You've brought naff all to this discussion.
by Tosher February 10, 2002
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