Ok I think I get it. I wanted to know why that term was being used in another thread. I did try to do a search with the term CUR in the forums and for some reason nothing came up, even this thread. Maybe Im not doing the search feature right. So basically a cur is a dog that does not do what it was bred to do. So if a golden retriever does not retrieve, it is a cur as well right? So if an apbt does not fight to the death it is a cur? A greyhound that doesnt run is a cur. A hound that doesnt use his nose to track, is a cur. But then a cur can describe an unruly mongrel of a dog as well. Wikipedia mentioned something about a mixed breed growling dog. To me that sounds like a fear aggressive type of dog. And then there is dogs whose breed name includes cur, hunting dogs. The other thread was talking about lunging dog aggressive dogs, and one member was calling dogs that do this curs and nervy. The argument was that in apbt genetics, they are dog aggressive.