14
Full Of Shit (FOS). A person who likes to talk too much about themselves.
I can't stand my boss he is FOS.
by MoFo medic November 14, 2007
Get a FOS mug for your father-in-law Jerry.
15
Pronounced 'Fahhz'
Stands for "Freak Out Syndrome"
(fos, fosing, fossed, foser)

1) noun: The instance in which someone has a crush on someone else but denies it, convincing themself that they don't actually like them.

2) verb (to fos, fos out): Any act of running away from a potential relationship or fling with another, for no apparent reason.

3) verb (to fos): When someone makes a move on you and you completely freeze up and aren't sure why. Side effects may include the feeling of flushed skin, increased heart-rate and utter nervousness.

4) noun: Something that ruins love lives.


Alternative spelling: 'foz'

"He grabbed her chin romantically and tried to kiss her, but she fosed majorly and couldn't move."

"He was the perfect guy, but she didn't date him because she had a bad case of
fos."

"Don't be a foser! This is a good opportunity!"
by Bestiesinastar March 23, 2009
Get a fos mug for your friend Günter.
17
The man is FOS (original meaning) ... he does not deserve the FOS.
by MIT-GUY August 11, 2012
Get a FOS mug for your guy Georges.
18
Fuck On Sight. An acronym used by two friends to describe a person who they see who they would like to instantly fornicate with on sight.
Two guys are walking when they see a really hot gurl and one gay says to another FOS? And the other gentleman nods in unison.
by Ilovecurry April 14, 2010
Get the FOS neck gaiter and mug.
19
Word used to describe a person that quiet often doesnt tell the truth, or in other words is "full of shit"

Also known as a "Fossi"

Guy 1: "I once used a cat as a soccer ball"
Guy 2: "ahuh, you're FOS"

by J!M! June 26, 2008
Get a FOS mug for your brother-in-law Paul.
20
this is a shorter term for "Flap Of Skin". a flap of skin is someone in your group of friends whom you may consider the "loser" or the person who you only hang around with for a certain reason, that reason not perticulary meaning you enjoy their company.

it could also mean someone with NO private parts.
" Kris has no vagina"

"She is but a Flap Of Skin!"

"I couldn't concentrate when the FOS was talking to me, she annoys me to much."
by i heart flap of skin July 12, 2009
Get the FOS neck gaiter and mug.