Oswald cleans his apartment, but it did not turn out good. So Oswald decided to put the things he no longer needs in a wagon to take to the dump, but several Big City citizens find uses for them.
This episode marks the debut of Pongo, although it is never explained who he was as he only makes a brief cameo. Also, in this episode, his facial hair is orange, in all subsequent appearances, it is green.
The phrase "Down in the Dumps" means very very sad.