I named my first Chihuahua before I ever saw him. I rescued him from a puppy mill. I found a Craigslist post online about a lady who had a female Chi, who had a litter of four Chihuahuas.
I answered the ad, and she told me there were two dogs left to be adopted. One female and one male. I knew I wanted a male, and told me he was five weeks old. While on the phone with her I knew what I wanted to name him. Chico.
Why did I name him Chico? The first thing that came to my mind was the old television show Chico and the Man. Plus Chihuahua's are a dog that comes from Mexico and I live in the Southwest. The breed is named after the state of Chihuahua in Mexico, where the Chihuahua is thought to have originated from.
My other Chihuahua is named Coco. I also rescued him, but from a woman who had to move to a shelter, as her house was being foreclosed on. She had four children and the shelter didn't allow dogs. He was already named and the name Coco fit him perfectly, plus he was a year old so, it didn't seem right to change his name.
So I had two Chihuahuas...
Then, I adopted a dog name ChiChi (yes, ChiChi, Chico, and Coco)! He also was a Chihuahua, but I didn't have him for a long time, because he had a bad disposition and decided to take a few bites out of me one night. I couldn't have that, and he couldn't be given to anyone else, so... he was taken to a place where he was put down.