fos
it could mean also :

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Free Open Source Directory
by peter edin August 27, 2008
FOS
Father over shoulder.
Stop the cybering! FOS!
by AriBigFatBlackGuy November 30, 2009
FOS
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
fos
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
FOS
1. Full Of Shit

2. Female Oral Stimulation

3. Nickname for Andrew Lynn
1. Furby is FOS

2. Morris: I went for a bit of FOS with apiphonyiernfi

3. Are you going to millys FOS?
by jOeFiSh15 October 08, 2008
FOS
n. to describe a person who is 'Full Of Shit', and treats those who try to help them with disrespect.
Person 1: 'I'm not coming to my doctor's appointment today because you didn't tell me I had to pay anything.'
Person 2: 'Don't be such a FOS.'
by Maria Espia March 17, 2008
FOS
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
fos
Flies on shit.
I was all over her like fos.
by Jesuswtf January 31, 2004

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