smoking glass 

Smoking methamphetamine drugs

Gena had been smoking glass again. She's been up for days tweaking out and getting skinnier.

smoking glass by Audrinna August 19, 2017

Smoking the glass dick 

Slang used to describe someone who is smoking meth, as a "glass dick" typically refers to a meth pipe.

"She's lost a ton of weight. I hope she's not smoking the glass dick."

Smoking the glass dick by ErinNotAaron September 16, 2013