That's a good question! "... BreastCleavage, NinniesHide, WaistNarrow,..." NinniesHide? Normally, I would have said that a ninnie was an inferior or stupid person: a dimwit or numbskull, or perhaps merely a careless fool. I think it is short for nincompoop (which your dictionary probably doesn't have, either). However, from the context of this usage, I think Netherworks is using ninnies as a euphemism for nipples. Maybe. It might be the entire breast. English is dialectal. Here is California, we have "meep" and "breakfast yinnie" which won't be in the dictionary, either. It makes a poet's life that much easier to have more words to play with. ;) Carolly