| Abbreviation | Definition |
|---|---|
| GB | Gadget Boy |
| GB | Gallo Beast |
| GB | Gig Bag |
| GB | Goat Boy |
| GB | Goofy Bunny |
| GB | Gun Boy |
| GBA | Garlic Bread Award |
| GBA | Green Blob Army |
| GBD | Great Britain Dammit |
| GBE | Grieb Becomes Eclectic |
| GBH | Great Big Hairdos |
| GBH | Great British Hero |
| GBH | Great British House |
| GBI | Guided By Idiocy |
| GBP | Good, Bad, and Pretty |
| GBS | Great Big Steve |
| GBT | Gullible Brother Teddy |
| GBU | Goomeri Boys Union |
| GBU | Greater Buttafuoco Universe |
| GBW | Great Big Wussies |