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The act of stroking your glass in a masturbatory fashion, often done subconciously. Can be done with a mug, cup or tankard also.
"Dude, stop glassturbating, it's making me uncomfortable!"

"Sorry buddy, didn't even realise."

"...You're doing it again!"
by Jawful October 25, 2011
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2
The act of masturbating with the aid of porn viewed on Google Glass, either in private or in public.
Man 1: Hey, you see that guy over there?
Man 2: The one wearing Google Glass with his hands in his pants?
Man 1: Totally Glassturbating right now.
by Sunshine n' Roses April 28, 2013
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