FYIFV (standing for `Fuck You, I`m Fully Vested`) or FYIV is a piece of early Microsoft jargon that has become an urban legend: the claim that employees whose stock options were fully vested (that is, could be exercised) would occasionally wear T-shirts or buttons with the initials `FYIFV` to indicate they were sufficiently financially indepe...
F*** You I'm Fully Vested