- G-SHOT or O-SHOT
- G-SPOT
- G-STRING
- GAFF
- GANG BANG
- GANG BANGER
- GAPE or GAPE SHOT
- GAY AFTER THREE
- GEEK
- GENDER-BENDER
- GENDER DYSPHORIA
- GENDER FUCK
- GENDERQUEER
- GENITAL ACNE
- GENITAL BEADING or PEARLING
- GENITALS
- GET OFF or GETTING OFF
- GFE
- GHOSTING (GHOSTED)
- GIVE HEAD
- GLANS
- GLORY HOLE
- GLORY-HOLE PROTOCOL
- GO DOWN ON
- GOATSE
- GOBBY
- GOING COMMANDO
- GOLDEN DOUCHE
- GOLDEN ENEMA
- GOLDEN SHOWERS or PISS PLAY or WATER SPORTS
- GONADS
- GONORRHEA
- GONZO PORN
- GRAMP STAMP
- GREEK
- Greening Out
- GREY SWEATPANTS
- GRINDR
- GROMMET
- GROPE
- GROT or GROT SITE
- GUICHE
- GUSHER
- GYNECOMASTIA