To be smoking methamphetamine or crack cocaine from a rose tube, which is phallic in shape. Usually said when someone suggests or says something so dumb, that it's on par with what you'd expect a crackhead to say.
Stranger: heyy, would you be interested in investing in my multi-level marketing product for essential oils?

Wiseass: you must be sucking the glass dick if you think I'd fall for that shit!
by NegativeZEN October 18, 2021
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Step son: "Mum come here"
Mum: "Yes?"
Step son "SUCK ME DICK"
Mum:"OK!"
by A dick sucker March 24, 2021
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