Episode Title: Scuba Doobie-Doo
The title of this episode could possible be a reference to three different things.
First it is a play on the popular cartoon character Scooby Doo, whose trademark line is "Scooby-Doobie-Doo".
Second, it could be a nod to the Frank Sinatra song, "Strangers in the Night" which contains the scat line, "Dooby dooby doo".
Lastly, though most obscurely, it could also reference a poem turned song by Shel Silverstein entitled Floobie Doobie Doo."