A fork of Rural Dictionary
Stands for: "No Financial Interest"
Posted on message boards when promoting a product where you do not benefit from the sale. This indicates you aren't getting financially compensated and helps validate your recommendation.
Butt cheek chafing? You should try Boudreaux's Butt paste (NFI). My friend tried it and it works great.
(as a side note, there is such a thing: buttpaste.com, and I have no financial interest in this product ... and neither I nor any friends have tried it)
Not Fucking Invited,
A statement, usually of discontent from one to another stipulating their distain at not having been offered the chance to come to a particular social occaision.
Geoff "gemmima's having her party next week, are you coming?"
Will " No mate, NFIed"