Pepsi

Pepsi is a brand name coined in 1898, derived from the digestive enzyme pepsin and the kola nuts used in the original recipe. The name was chosen to suggest digestive benefit and energy. As a pet name it is a playful brand-name borrowing in the tradition of Cola, Fanta, and other soft-drink names.

Pepsi is a name that commits to fun with absolutely no apologies. It is fizzy, cheerful, and impossible to say with a straight face — all of which are excellent qualities in a pet name. Brand names make surprisingly good names for animals because they are already embedded in popular consciousness, require zero explanation, and signal an owner who is here for a good time. A pet named Pepsi is presumably energetic, probably sweet, and generates a predictable amount of 'is that really your dog's name?' delight at the vet's office.