- "This song is an oldie ...but, uh ... *pause* Well, it's an oldie where I come from."
An oldie was a song or piece of music that was over twenty or thirty years old. The term was used since the early 1930's to refer to a song or story that used to be popular long ago.
When Marty McFly introduced "Johnny B. Goode", he started to say it was an "oldie but goodie", a variety of the term "oldie" which appeared in the mid-1960's, but realized that it would not make sense to people in 1955 since they had never heard the song before.
Chapman, Robert L. (1995). "Dictionary of American slang" (3rd ed.). New York: HarperCollins. pp. 231, 400.