I’m not sure if Nipplegasm is a real word, but I’m willing to argue it should be. As this Guardian article explains, nipple orgasms are a thing.
One big part of my kinky journey has been learning to develop erogenous zones and in particular the nipples. Previously I treated them as pointless fleshy chest blobs. Now, after years of incorporating them into kinky play, they’re magic buttons of pleasure. I’m not sure I’ve ever had a pure nipple orgasm, but they’re certainly a big part of my play. Worth working on if you’ve not yet done so.
This drawing is by the artist Minahon. You can find their twitter here.

You can find more of their work via a gallery that 

I believe this is Hong Kong based pro-domme Mistress Elis Euryale. You can find her professional site 

Image sourced via
Artwork is by