Here's what it could potentially mean:
* "朋友" (peng you): This means "friend" in Mandarin Chinese.
* "对不起" (dui bu qi): This means "sorry" or "excuse me" in Mandarin Chinese.
Considering these possibilities, "de nv peng you" could be a misspelling of "对不起，朋友" (dui bu qi, peng you) which would translate to "Sorry, friend."
However, without more context, it's impossible to be sure.
To get a more accurate translation, please provide the full sentence or context where you encountered this phrase.