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!
Wiseass: you must be sucking the glass dick if you think I'd fall for that shit!
by NegativeZEN October 19, 2021
by Babie Thug April 4, 2006