Definition of be FOS

FOS

adjective

acronym for "full of shit".
My brother says that he'll pay back the money he owes you, but I think we both know he's FOS.
- See more words with the same meaning: acronyms (list of).
- See more words with the same meaning: nonsense, lies.
Last edited on Aug 31 2013. Submitted by jimy164 from Riverside, CA, USA on Aug 30 2013.

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Related words

Slang terms with the same meaning

Other terms relating to 'acronyms (list of)':
BDE	Definitions include: a demeanor of quiet confidence.
FLOTUS	Definitions include: acronym for "first lady of the United States".
DYK	Definitions include: acronym for "do you know" or "did you know".
D/D free	Definitions include: "drug and disease free", i.e. not a drug user and without sexually transmitted diseases.
BBL	Definitions include: acronym for "be back later".
fud	Definitions include: the vulva ("vagina").
NOYFB	Definitions include: acronym for "none of your fucking business".
omgwtfbbq	Definitions include: acronym for "oh my God, what the fuck, barbecue."
bb	Definitions include: abbreviated form of "baby".
g	Definitions include: short for "gangster" or "gangsta."
DSL	Definitions include: acronym for "dick sucking lips."
txt	Definitions include: to "text" - i.e. send a text message.
dilligaf	Definitions include: acronym for "Do I look like I give a fuck?"
TSC	Definitions include: acronym for "that shit crazy" or "that shit cray".
B.G.	Definitions include: baby gangster.
(show 722 more)
Other terms relating to 'nonsense, lies':
baloney	Definitions include: alternate spelling of bologna, i.e. nonsense.
booty chatter	Definitions include: nonsense, lies; "bullshit".
full of it	Definitions include: "full of shit", "full of crap", or the like.
*bull sht**	Definitions include: See bullshit.
pile of pants	Definitions include: nonsense.
epizootics of the blowhole	Definitions include: a metaphorical disease where one speaks at length about something one knows nothing about.
gobbledygook	Definitions include: nonsense.
*poppycck**	Definitions include: nonsense.
wind up	Definitions include: to anger.
stretch	Definitions include: a period of time.
pish posh	Definitions include: nonsense; something absurd.
*horse sht**	Definitions include: nonsense
rubbish	Definitions include: nonsense.
malarky	Definitions include: spelling variant of malarkey.
hokum	Definitions include: nonsense that, on the surface, appears legitimate.
(show 28 more)

Slang terms with the same root words

Other terms relating to 'full':
chock-full	Definitions include: completely full.
do the full monty	Definitions include: to go all the way, to finish something
full	Definitions include: an expression of confirmation or agreement.
full as an egg	Definitions include: extremely full after consuming food or drink.
full as a tick	Definitions include: drunk.
fuller than a tick on a coon dog	Definitions include: Filled almost to bursting.
full factory	Definitions include: absolute top quality in all ways.
full Lewinsky	Definitions include: a blowjob
full-meal deal	Definitions include: a young man who is long-term relationship material.
full monty, the	Definitions include: the whole thing.
full of crap	Definitions include: "full of nonsense."
full of hot air	Definitions include: see hot air.
full of it	Definitions include: "full of shit", "full of crap", or the like.
full of (one's self)	Definitions include: conceited.
*full of sht**	Definitions include: lying or prone to lying.
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Other terms relating to 'of':
abbreviated piece of nothing	Definitions include: a worthless person.
a bit of how's your father	Definitions include: sexual activity.
about the size of it	Definitions include: a good estimate.
a couple beers short of a six-pack	Definitions include: a little crazy
a few cans short of a six pack	Definitions include: of lower than average intelligence.
a few fries short of a happy meal	Definitions include: "not all there".
afraid of (one's) shadow	Definitions include: skittish.
*a grain of ssault**	Definitions include: an amount of violence.
ahead of the curve	Definitions include: having an opinion or belief prior to it becoming common or popular.
a hell of a	Definitions include: an impressive.
a hell of an	Definitions include: an impressive.
all kinds of	Definitions include: many.
all of my yes	Definitions include: an emphatic "yes".
all that and a bag of chips	Definitions include: better than all that.
all that and a bag of Fritos	Definitions include: the best.
(show 346 more hide)
Other terms relating to 'shit':
*act like (one's) sht doesn't stink**	Definitions include: to act superior.
*act like (one's) sht don't stink**	Definitions include: See act like (one's) shit doesn't stink.
*and sht**	Definitions include: used to emphasize the preceding statement.
*ape sht**	Definitions include: crazy.
*as sht**	Definitions include: "very".
*baby sht yellow**	Definitions include: offensive shade of yellow
*bag of sht**	Definitions include: a despicable person.
*bat-sht crazy**	Definitions include: very crazy.
*beat seven shades of sht out of**	Definitions include: to beat severely.
*beat the sht out of**	Definitions include: to beat severely.
*beer shts**	Definitions include: foul-smelling loose stools experienced the day after heavy drinking.
*be like flies on sht**	Definitions include: to be present in large numbers.
*bored shtless**	Definitions include: extremely bored.
*bore shtless**	Definitions include: to make a person extremely bored.
*brick shthouse**	Definitions include: a large muscular person.
(show 213 more hide)