| Abbreviation | Definition |
|---|---|
| GTG | Get the Goat |
| GTG | Get Trapped Girls |
| GTG | Goat To Go |
| GTI | Get Tickets In |
| GTI | Gone To Italy |
| GTO | Garbage Truck with Overdrive |
| GTO | Geez That's Old |
| GTO | Girls Together Outrageously |
| GTO | Gorillas That Observe |
| GTO | Great Takeshi Only |
| GTS | Goody Two Shoes |
| GTS | Gosh That's Slow |
| GTS | Guaranteed Tremendous Safety |
| GTW | Giant Train Wrecks |
| GUAM | Give Us American Money |
| GUAM | Governed Under American Millitary |
| GUD | Greatest Uncommon Denominator |
| GUI | Geese Under Igloos |
| GUI | Girls Unite Inside |
| GUI | Good User Interface |