fas

fake and sketchyy. a fake friend. a liar

your being hella fas

by bbyjkillz October 9, 2007

fas

flip a shit

if my mom sees how trashed this room is, she's gonna FAS!!

by ahead of her game February 1, 2010

fas

Fake a Smile, pretending to be happy for someone

a true friend fas for you, but a true friend doesnt let them

by goodbyelove July 21, 2017

fa

A person that is so awesome they are defined as fucking awesome, Also can be used in a sentence to describe someone awesome at sex.

Dude that guys so fa.
Look at how fa she is.
Yo dude that guy is so fa he split her pussy in half.

by KTLGoose July 19, 2010

fas

flat ass syndrome

Yeah red beans and rice did miss her.. she's got that fas

by uncle Tay-Tay May 26, 2003

FAS

Federation of American Scientists.

They are an organization that has existed since the Manhattan Project. To this day they continue to exist for the sole purpose of providing YOU, the researcher, with information regarding all kinds of weapons from different nations as well as, given FAS's history, information on nuclear weapons and other WMD's.

"Please donate to the FAS."
-a little pop-up window that appears once in a while on the FAS website

by Dave September 10, 2004

fas

Foetel Alcohol Syndrome. Usually used when refering white trash hicks who look deformed

Man Luke looks really fas.

I drank a quart of liqour yesterday and fuck I feel fas today

Shit the fassiest chic served us at sandwhich king today

by Dispersion February 25, 2004