is fat and normally in love with (girls) with long black hair, middle eastern culture and and are currently engaged in a physical relationship. usually starting with the letter Y

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)

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

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

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......

Another way of saying "yes" in response to a question