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True and false combined to mean FRULSE. It was originaly used to mean neighter True or False, but now days it is used to mean more True then False.
Q: Yo ninja you coming out to ride with us this weekend?

A: FRU
FRU by Ralph Bigsack November 7, 2006
Related Words
Fru- another way of saying for real.
Brad: Yo Dawg that jank is six seventeen!

Angel: Fru
Fru by Team Dans June 5, 2009
fart roll up - a fart gone in the wrong direction. (also known as a fart bubble)
FRU happens mainly on women..it goes up and gets trapped...instead of going out the back way.
FRU by christevie July 16, 2006
short for field replacement unit.

at the cell phone or apple store when they offer you a fru, decline it and say you don't want refurbished trash that will break in another week

a warranty replacement
rep- we can replace your phone with a fru
customer- is it refurbished?
rep- well, it's actually certified like new
customer- so, refurbished?
rep- yes.
fru by hank markdukas January 13, 2011
Retard Units. Used to describe English Measurement units (as opposed to SI Units). The F expresses frustration... although not in those exact words.
WTF is a psig!? These FRUs are killing me.
FRU by asdf.what? July 2, 2009
the most stupid person u will ever meet. she is retarded and dosent have any self control and hooks up the wrong guys and should be smarter. but she is very pretty and nice and a good friend. just a bit stupid. but that’s okay. she makes all A’s so that’s good
fru is so stupud
fru by huqdfjhe;fih April 12, 2020