| | GLB4UGH | | Get Lost Before You Get Hurt |
| | GLBT | | Gay, lesbian, bi, and transgender |
| | GLBT | | gay, lesbian, bisexual, transgendered |
| | glbtq | | gay, lesbian, bisexual, transgender, questioning |
| | GLG | | Goofy Little Grin |
| | GLGH | | Good Luck and Good Hunting |
| | GLIF | | Guideline Interchange Format |
| | GLIW | | Got Lost In Web |
| | GLM | | Good looking Mum |
| | GLNG | | Good Luck Next Game |
| | GLTD | | Generic Top Level Domain |
| | gluasdi | | God loves you and so do I |
| | GLWT | | good luck with that |
| | GLYASDI | | God loves you and so do I |
| | gm | | General Manager |
| | gm | | Genetically Modified |
| | gm | | good morning |
| | gmab | | give me a break |
| | GMADB | | Give me a damn break |
| | gmafb | | give me a f**king break |
| | GMAO | | Giggling My Arse Off |
| | GMAO | | Giggling my ass off |
| | GMAT | | Graduate Management Admission Test |
| | GMLC | | Gateway Mobile Location Center |
| | GMRS | | General Mobile Radio Service |
| | GMTFT | | Great Minds Think For Themselves |
| | GN | | good night |
| | gnblfy | | got nothing but love for you |
| | GNSTDLTBBB | | Good Night, Sleep Tight, Don't Let The Bed Bugs Bite |
| | goa | | Gone On Arrival |
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