A glass instrument for smoking methylamphetamine. It can be professionally blown or as simple as a light bulb and a pen.
I'm tweaking off my head cos the glass barbecue shattered me.

I was scattered off me head from the glass barby so thought it would be a good idea to cook up some shards in Walmart.
by heathclit December 23, 2011
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Someone who enjoys frying up some good Ol' methamphetamine . A shortnened version is "glass barbie enthusiast"
"I'm not going to invite Dave over anymore, the bloody glass barbecue enthusiast keeps steeling my light bulbs"
by Fatnuselessninja December 14, 2017
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