When Chazz finds out that Puppy is sad all the time, he decides to give her a name. But later, Puppy ended up getting sick, which Chazz though was due to an identity crisis (she actually ate part of Kira's jigsaw puzzle). Noting that, the Rugrats started looking (litterly, around the house) for Puppy's new name. When it came to a point when Chazz started banging his head on the wall, he calls veterinarian Dr. Mutterly to see what the problem was. When the vet came over, the Rugrats thought that he would give the puppy a new name. But of course, his unorthodox methods leave something to be desired. (thetvdb.com)