Definition
A local neighbourhood or region.
A place or field in which one is comfortable or with which one is familiar.
Origins
See neck (“narrow tract of land”) or from Algonquian naiack ("point" or "corner").
How People Actually Use It
Your area. Your region or neighborhood.
"Al Roker: That's the forecast. Stay tuned for local weather info in your neck of the woods. What time is it in your neck of the woods?"
Source: Urban Dictionary