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A tiny backpack used by lads around the Sydney area. A lad pack is only big enough to fit marijuana, spray cans, pocket knifes and assortment of other drugs.
Lad 1: Oi ya got the shit ya cunt?
Lad 2: Yea bra its in my lad pack.

Lad 1: Sweet lad pack, where'd you get it?
Lad 2: I stole it from the junction.
by Kensooo June 08, 2012
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