Top Definition
The state of behavior where someone is either obviously lying (poorly), misinformed, has a few nuts loose, about ready to black-out, is acting off-the-wall, was just tazed, drugged-up or actually 'on the junk' (heroin).
Dude #1: "Hey, look at Kevin over there jumping around like he's a freaking kangaroo!" Dude #2: "Yeah...must be wacky on the junk!"
by Surfer-Skier June 20, 2010

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