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2.
Replacement for the words; crap, rubbish, awful, bad etc...
Ah lad, that was jaag!

I feel proper jaag after last night.

You got burnt off by a Ford Ka? You're jaag you lad!
by GDJL88 May 08, 2009
 
1.
False, counterfeit, inferior, untrue.
Go-Bots are like jaag Transformers.
by John Reppion April 11, 2005