look up any word, like the eiffel tower:
 
1.
It's observed annoying techno savvy slang...
She was talking on her iphone as I approached her to take her drink order, spewing nonsensical jarbage into the phones receiver. "I tweeted him and he just sent me a text back! that fucker!
by spectralux November 15, 2009
 
2.
A java jar file that you must use in your application that wasn't created by you and that is giving you lots of problems.

or

A useless error message coming from a java jar file that wasn't created by you but that you have no choice but to use.
I can't get this application to work because this jarbage keeps appearing everywhere.
by Tingulz February 13, 2009