To fuck (sexual manner)someone without any tissues or phone numbers attached. Emotionally devoid sex. Usually done only in the doggy style position to avoid any eye contact and thereby eliminate any risk of attachment.
Not gender specific.
1. Crikey she's daft - but I'd og her senseless
2. Oh him? Nah he's really only good for a good og'ging - don't expect a toe massage with it.
3. I think we had a good og once, but I can't be sure I didn't really get that good a look at his face...