I see a lot of mention of edging and "leaking cum", and I'm wondering what exactly that means.

1. Without getting into the anatomy and physiology, let's distinguish between precum (clear, sweet, slippery) and semen/cum (milky, not sweet lol). They are not the same.

2. I have edged so close that I've shot one pump of semen without having a full blown orgasm. After this I'm still horny, with no hyper-sensitivity, and need no recovery before going further. It's easy to progress from here to a full O in just a few seconds. Is this what guys mean by "leaking cum?"

3. Related to above, what's the difference between that and a ruined O? In my limited experience, a ruined O is just going a bit further along the spectrum: more semen released, and more post-orgasm effects throughout the body (sensitivity, drive reduced, etc) but without the full pleasure-rush of a traditional orgasm. Also, the recovery time from a ruined O to being horny again seems shorter than a full-blown O, but longer than the "leaked cum" scenario in #2.

So is the whole thing just a spectrum of ejaculation and endorphins? That's what it's starting to feel like to me.

Thoughts appreciated!