Short for "Never Removed from Box," this abbreviation has become popular in recent years as a way of indicating that a toy, while not being sealed, has nevertheless remained undisturbed inside of its original packaging. NRFB items usually include all of their original cardboard inserts and paperwork, have never had their stickers applied, and contain parts that have never been removed from their baggies, boxes, etc. In other words, they are toys that have not been tampered with in even the most minor of ways since the time at which they left the factory.
However, NRFB almost never actually means Never Removed from Box, since, in truth, almost any toy that has been opened has been taken out of its packaging for at least a short period of time. So collectors shouldn't take the it as a literal description of a toy's condition.
Description: Ron Salvatore