gravity bongs; using a water bottle that has a hole at the bottom with a piece on top to hold weed on the lid. you essentially burn a hole at the bottom of the bottle, cover it with your finger & fill ‘er up with water, place the piece that holds the weed on top & light it while uncovering the bottom hole so that the water pouring out pulls the smoke. once the bottle is filled, take the piece off & inhale the smoke.
bro 1: “yo dude let’s go hit some gb’s before my mom gets home”
bro 2: “ohh shit ight
by succkmydicck November 11, 2018
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Gravity bong. a device that concentrates marijuana smoke to a degree that leaves you stupid high after taking 1 hit.
man we had 3 heads on a nick so we had to break out the gb..
by p April 22, 2003
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Gay Boys - a forever lasting clique of awesome guys who play madden, gamble at HP, eat el chato, and most importantly, suck dick (see word SD)
Normal person: Dude, let's go hit on some girls on main street, maybe makai or barcopa
GB2: Nah, I am going home to jerk off , play madden and sleep
GB3: Down to get on madden
Normal person: You guys are true GBs
by GBVB, LLC February 10, 2017
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"gb" simply means "goodbye"
No, it doesn't mean "gay boy" and it doesn't mean "gbone". It's just an abbreviation of goodbye. so be aware that if someone writes it it's not cause it's coming out of the closet.
by Peter B) October 7, 2020
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"So what did you all do over the weekend?"

"Nothing much, we went to John's house and had GBS."
by George January 30, 2004
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An abbreviation for Great Britain. Home of fish and chips, the English language and bloody brilliant swears and insults.
by Diggus Bickus June 14, 2018
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