Aussie slang to describe the act of one's Jaw Swinging while under the effect of pingas.
"What's wrong with that guy"
"The cunt is munching gums"
When you're shelving some pingas at the club and you start munching your gums.
Cunt 1 - "Oi, you see that cunt over there? He's munchin' gums"
Cunt 2 -"Yeah he's Jaw Swinging isn't he aye"
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