Great, Awesome, amazing. Very good. An adjective used to describe something good or great
That was a JAS party past night
by Jerome Romaxxx248 January 08, 2015
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A unit of measurement equivalent to 10 SAE inches.
Dude I measured my cock today... im pushing about .6 Jas's

Nice man, thats pretty impressive.

I know.. I wish I could be a FULL jas though...

There only one known case of a dick thats a full Jas in length. Dont feel bad.
by windab August 13, 2009
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Spanish for "ha" (since a Spanish "j" makes an English "h" sound).
¡Ja ja ja ja ja! ¡Qué chiste más gracioso!
by me gusta el espanol June 19, 2005
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Just a Second (Usually used in messenger convos!)
Fig 1: Hey do you have a pic of you GF
Fig 2: yeh jas ill find it
by Mattio August 11, 2005
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Acronym for Just a Second. Used to replace the implied longer wait of brb (Be Right Back)
40yr-old-virgin: Are you gonna send that sexy picture of yourself to me!?!?
hot_blonde_43: Yeah of course, jas...jas...
by Anonymous999 August 23, 2006
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a pre-fix used along with the word "like" in place of the pharse "kind of" (genrally used in the DC metropolitan area)
"It's ja-like cold outside"
"It's ja-like past by bedtime"
by LaMez March 29, 2005
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When someone you know, usually a guy named joey, smells like ass. otherwise known as Joey Ass Syndrome.
Dude your car smells like JAS
by a sensitive nose October 20, 2005
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