jas 

When someone you know, usually a guy named joey, smells like ass. otherwise known as Joey Ass Syndrome.

Dude your car smells like JAS

jas by a sensitive nose July 23, 2008

Jas 

a usually nice guy, normally half indian and mexican. they can make you laugh, and have crazy mood swings worse then a pregnant lady but tolerable.

"your a nice person, you remind me of jas."

Jas by kristineeeeeeee<333 January 7, 2010

JAS 

Acronym for jealous asshole syndrome which is characterized really jealous people.

omg, that girl had major jas when she dumped her boyfriend.

JAS by jizzyyy April 28, 2009

JAS 

An abbreviation for Just A Second.

used when one is very temporarily unable to communicate within an instant messenger conversation.

generally the shortest amount of time you can be away and still need to announce your absence. JAS<BRB and JAS<h/o (hold on)

1: hey where were you today?
2: (almost finished with a phone call) jas
1: aight
-moments later-
2: back. s'craick?
1: hey cool. where were you today?
2: who me? ah man i went home sick.

JAS by Jordan Dylan Merkin March 19, 2008

Jas 

A word from the place Järna in Sweden for "Yes"

"Can you give me a cig?"
"Jas"

Jas by Afrobear February 18, 2009

Jas 

A guy who is cute, adorable, loud, smart, and playful. He could be mean but warm on the inside.

Omg, Do you like Jas?

Jas by PandTHePoopguy May 11, 2018

JAS 

In my experience, JAS MUST stand for "Jupiter and Saturn", as this persons expanding waste-line can only be measured in this way. An irritating twat of a co-worker whos lazy antics are ignored as he is such a salad tosser. A pervert and a nonce who disgusts all around him with his suggestions of his thong wearing habits. Great fun to work with......

Secretary: "JAS has just come in"
Paul: "Is he with USM, AP, PL or DC?"
Secretary: "Yes, hes with PL"
Paul: "Is he walking, or is he hanging out of PL's ass again?!?!"
Secretary: "Hes walking and telling him about his red thong!"

JAS by Macster007 December 7, 2006