"Coney Island Baby" is often included in the repertoire of a barbershop quartet. The original lyrics are not related to Coney Island directly, but are about a man abandoning his lover (whom he apparently met at Coney Island) to avoid marriage, the drudgery of which is lamented in the middle section, often known separately as "We All Fall."
An alternative reading can be made by reference to the line "I'm gonna sail upon that ferry boat" which suggests that the song is sung by a man about to take the ferry from Coney Island. Until the subway came to Coney Island in 1920 most visitors would have arrived (and departed) by ferry.