Top Definition
Short for "australian ford forums specification" which basically means very crap, or used to describe someone who has done something bad to you for no reason.
"Dude, check out my painted dash and neonz"

"OMFG...get rid of that!!! So AFF spec!"

Or:

"Dude, why would you root my girlfriend? That's AFF spec man"
by Rollin4litre May 29, 2008

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