One example of this is my Bobbi - Quansa's Doubletime. Her daddy is Quansa's Military Man and her mom is Quansa's Hop To It. When I think of a military person hopping to it, I picture them marching at a doubletime pace. Thereby, the name Quansa's Doubletime. Other pedigree names are based on a theme for a litter.
Some people require their puppies to be named based on a theme.
She was very good and seemed to have fun. It was Scully's first time out somewhere other than the vet's office. It was also her first time walking on a lead in an unfamiliar place. She walked right along until we had to walk past a car that was running. She stopped dead and stared at the car.