nrfb 

Acronym meaning "Never Removed From Box"

Commonly seen for collectible items, implies it is in the original packaging and is "from the factory" fresh.

For Sale: Original G.I. Joe Toy, NRFB

nrfb by Adam1954 June 27, 2005

NRFB 

Acronym meaning "No Respect Finger Blast"...

Please don't NRFB my sister while you're on my couch. It's gross and I have to sit there.

Q: Is it possible to give me an RFB?
A: No, there is no respect involved in a good ol' finger blast!

NRFB by shotgun24 September 25, 2011