Comment by MangaFiend83 on One Piece - Chapter 1182

@MangaFiend83  
No, that is a nightmare given form. The users own nightmare to be exact. So stronger than normal.

@Nobody i know that, however given the context(as i have read it, i could be wrong) , i believe its implied that she was at one time a very real threat. hence why she is still a nightmare to them. thus if she were real, the implication is she had a water type devil fruit.

@MangaFiend83  
Okay even if she was a real person what makes you think this would be her real form?