The act of creating a paraphernalia product by removing liquid from a cartridge inside a rechargeable hookah pen and substituting it with weed. These actions produce a bud vaporizer commonly called a "grock" or "g.rock."
Bout' to smoke this grock
by geeezy February 22, 2014

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A type of music-
German Rock
Dude! Rammstein is my favorite G-Rock band ever.
by Sukai January 26, 2008

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Verb:
1. To feel the cosmic energy, to draw knowledge from any energy source, be it a person, a tree, or light.
Easiest while under the effects of entheogens, although Ganja has been known to help.
2. To do something to one's fullest capacity.
3. To have one's third-eyed opened.
Comes from the word Grok, meaning to understand so thoroughly that the observer becomes a part of the observed, from Robert A. Heinlein's 1961 book, "Stranger in a Strange Land."
1. "Grock Sharzar's glorious silver light."
2. "I'm Grocking the holy living shit out of my guitar right now."
3. "HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA!"
by The Good Friar July 20, 2013

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Grungy socks. Very dirty or crusty socks. Usually worn more then a day at a time.
Person 1: What is that smell?!

Person 2: I think it's zak's yellow grocks!
by shadyops February 22, 2010

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The method of foreplay whereby the leading particapant penetrates female genitalia with their 3rd and 4th fingers, forming the 'rock on' hand gesture. This allows for some wild G-Spot hitting, allowing maximum flexibility and improved stimulation. Can also be performed using just the middle finger for the tighter among us.
'Dude, last night Tom G-Rocked me so hard; I've never come so quick'

'Man I know! Where did he learn that shit?!'
by grock247 October 22, 2009

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Combination of the words great and rocks. Is meant to denote something so exciting/awe-inspiring that not just one of those above words will suffice.
"Dude, you finally got an internet connection in your room?"

"Yeah, it fucking grocks!"
by Scarecrow March 24, 2005

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a shortening of "geek rock"-- original songs relating to a fandom. for example, "Harry and the Potters" write grock.
She began an epic grock song about Spike and Buffy.
by honeynutcheerios October 07, 2009

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