Google Black Belt. A specific level of user knowledge that makes searching specific things with ease. Typically the one person that everyone goes to and thinks is smart.
Hey Man, can you look something up for me? For sure bro, let me google that for you, I'm GBB LV2.
by GBBLV3 September 26, 2017
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Gas Blowback is a function equipped on weapons which operates with help of gas and shots 6 millimeter ammunition. The word "Gas Blowback" means that the slide repeats between each rounds when the weapon fires.
GBB: Gas Blowback pistol. (Soft Air Gun)
by Tompa August 6, 2006
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Grand Beatbox Battle. It is an annual championship for beatboxer around the world. The Youtube Channel "Swiss Beatbox" is uploading compilations, the different battles and more. The battles are happening in a different country every year.

What battles are there?
- Solo eliminations
- Tag team battles
- 1v1
- Loopstation
How can you enter?
- You upload a Wild-Card with your best Beatbox Routine on youtube and they choose the top 16.

What is the Prize?
- You get a certificate and the status that you are the best Beatboxer world wide.
Heartzel: "Ayo GBB"
Crowd: *cheers*
Heartzel: *starts beatboxing*
by CinnamonVox February 27, 2022
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GBB Green Bottle Blue,chromatopelma cyanopubescens; a species of tarantula.
None GBB
by Person that likes stuff November 27, 2009
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gbb is a dangerous gang based in australia. aka gay black babies
i thought my life was over when gbb pulled up
by GBBthugga December 1, 2020
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get broadband

(said to annoying people on dial up who insist on downloading lossless audio files at 5kbps for days on end)
D: hey beebs, can i get some flac?
B: gbb you tosser
by david July 8, 2004
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