|Duchess of Wails|
|Episode name pun on: Princess of Wales|
|Airdate:||September 23, 2005|
"Imposter's Home for Um... Make 'Em Up Pals"
"Foster's Goes to Europe"
Foster's is finally able to get rid of Duchess when she is adopted, much to Frankie and Mr. Herriman's delight. However, the family that adopted her turns out to be Mac's neighbors and her complaining gets to be too much for Mac's mother to handle. Terrence tells Mac that she is thinking about moving to Singapore (which Terrence thinks is in Wisconsin). Mac and Bloo attempt to frame Duchess by wrecking up her owner's home, but this only makes them love her more. They decide that they must bring her back to Foster's, but are prevented from doing so when Terrence warns of their arrival. In the end however, Terrence's plan fails when the Foster's residents learn about Mac moving and agree to take Duchess back, at the cost of now making Mac and Bloo Duchess' personal butlers.
- This is one of the few episodes where Duchess plays a major role. (In fact this is Duchess' biggest role)
- Duchess calls Mac and Bloo "Blinky and Clyde", two names of the ghosts in Pac-Man.
- The Foster's motto says "Any friend who enters through this door we will house and nurture forever more" but the plaque reads "nuture"
- Mac incorrectly states that Singapore is in Malaysia, as Singapore is an independent country off the coast of the Malay Peninsula.
- This is the second (and last time) where we see Duchess and Terrence in an episode together, however their roles are different and they don't team up again.
- This is the second episode since "House of Bloo's" where we see Mac's mom.
- Madame Foster in the episode says "Show em what's up, Doc!" before carrots are thrown. This is a reference to Bugs Bunny's iconic phrase "What's up, Doc?" and his tendency to eat carrots.
- The Applebee family bears similarities to The Flanders family from The Simpsons as Mr. Applebee is very similar to Ned Flanders.. Sally also has a similiar appearance to that of Maude Flanders.
- The sequence where the residents of Foster's defend the house against Duchess's return is a parody of the battle of Helm's Deep in The Lord of the Rings: The Two Towers.
- Bloo somehow stays over at Mac's house, despite the fact that its largely against the rules of the show.
- The music that plays while Bloo shows Mac his mittens is the same music that he dances to in Adoptcalypse Now.