N. Two four day work or school weeks separated by a four day weekend.
These next two weeks at school wont be that bad, it's a fo fo fo.
by MV2011 September 4, 2010
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FOS is short term word said for "Figure of speech", "Figure of speech" is used for like in sentences where your joking.
I'm kms (FOS)

You are idiotic (FOS)

What if i start a cocaine company?🤔 (FOS)
by ShadowOfHallows October 24, 2023
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"fo shizzle ma nizzle" is a bastardization of "fo' sheezy mah neezy" which is a bastardization of "for sure mah nigga" which is a bastdardization of "I concur with you whole heartedly my African american brother".
by BAMBAMBAAAAAM October 28, 2009
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When one friend is acting like a fool.
"What u want Fo"?

"This fo keep bugging me"
by Rock6d January 4, 2012
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When you are in London, and you don’t want to say posh, because Londoners won’t like it
Do you want to go to Hilton to have some drinks? No, it’s too fo fo fo
by Mintek March 26, 2019
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fo or im going to stick my massive donkey sized bell in ur fuckin ear
also fu = fuck you as in im a fu in the ear I WILL FUCK U IN THE EAR
by marc May 9, 2003
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