The phrase "puppy in my pocket" refers to a small toy dog that can fit in one's pocket. There are various synonyms for this phrase, some of which include "tiny toy dog", "petite pup", "miniature canine", "pocket pooch" and "lapdog". These names not only describe the size of the dog, but also imply their adorable and cuddly nature. The phrase "puppy in my pocket" gained popularity when it was used as the title of a children's toy line in the early 2000s. This line features miniature dogs that can be carried around in a child's pocket, making for a fun and interactive toy experience.