FOS
FOS by Barbarella11 December 21, 2010
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FOS
The acronym for a person who is Full of Shit. When someone is constantly telling outrageous lies, typically about themself, in order to impress others.
"Did you hear that FOS was offered a full scholarship to Harvard, but turned it down to be a UPS driver?"
FOS by Quinn Littles May 14, 2009
FOS
An abbreviation, meaning "fuckable-on-site". Used to classify extremely sexy people who arouse others to an immediate, uncontrollable frenzy.
FOS
Abbreviation: FOS = Full of Shit
• It can mean that someone is lying, therefore full of shit.
• It can also mean the literal aspect, the state of being FOS.
(constipated) or (bowel obstruction)
• It can mean that someone is lying, therefore full of shit.
• It can also mean the literal aspect, the state of being FOS.
(constipated) or (bowel obstruction)
That patient is totally FOS, just trying to get some drugs.
The patient in room 22 is literally FOS; constipated as hell.
They tried to tell me a BS story about losing their prescription, but I can tell they are FOS.
The patient in room 22 is literally FOS; constipated as hell.
They tried to tell me a BS story about losing their prescription, but I can tell they are FOS.
FOS by Night.ER.Ninja July 27, 2014