A Chiweenie is a hybrid breed or mixed breed of dog; a cross between a Dachshund and a Chihuahua. An adult Chiweenie can weigh between five and 10 pounds. They usually have the length of a Daschund but have a small head shaped like that of a Chihuahua.http://www.designermixes.org/Breed_Info/172/Chiweenie.aspx

Chiweenies are recognized by the Designer Dogs Kennel Club and the American Canine Hybrid Club, they are not purebreds so they're not recognized by the AKC.http://www.dogbreedinfo.com/chiweenie.htm The appearance can greatly vary as some have characteristics more similar to the Daschund while others look more like a Chihuahua. Their sizes also vary and some are tiny, especially if a parent was a Toy Chihuahua.http://www.dogbreedinfo.com/chiweenie.htm