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F.U.S.S is an acronym for F-un U-nrestrained S-hameless S-ex. to have fun hardcore sex with someone that you will most likely never see again.
"hey babe wanna go back to my place and have F.U.S.S?"
F.U.S.S by facegoogle July 14, 2011

R.U.F.U.S 

Is a person within a project that is responsible for finding, analysing and then utilising random factors that surround the project.
We're building a lemonade stand and David saw a kitten. He used it as a marketing tool to attract more people. He is such an R.U.F.U.S.
R.U.F.U.S by area300 February 28, 2018
1. The term used to give a large quantity of alcohol. A "Fucked Up" shot of alcohol.

2. A shot of alcohol served by a ninja with kung fu skills. If a consumer of alcohol finishes their shot the said ninja can replace the shot without the consumers knowledge thus forcing the consumer to question if they really did finish their previous shot.
Girl: how much have you put in there?

Dude: there's a Fu shot

Party host: FU shots all round
FU shot by da fu December 23, 2010

slu-fu-shu

A slu, for shu. Self explanatory.
Wow, look that at that slu over yonder waiting in line at Studio. Shes a slu-fu-shu.
slu-fu-shu by Fra Fra Fra March 11, 2008

F.U.N.G.U.S. 

When the piliot first joined the navy his callsign was F.U.N.G.U.S.
F.U.N.G.U.S. by RAMBL3R100 July 6, 2008
I finally bought a Beretta! Fu shae!
fu shae by mk December 10, 2003