Both the title phrase and the complement line "After 'while, crocodile" are examples of a common fad in the 1950s. This was a sort of rhyming jive-talk that crackled with rapid-fire phrases: "What's the deal, McNeal?" "Got no tale, Nightingale!" "What's your story, morning glory?" "It's my pleasure, treasure!" ...and so on. The Rosemarie Ostler book Dewdroppers, Waldos, and Slackers - A Decade-by-Decade Guide to the Vanishing Vocabulary of the Twentieth Century
calls this style "Voutian" and credits the jazz musician Slim Gaillard with its invention.
If you're thinking "Get on the bus, gus!", then you have a good clue, Blue! Another song to use this rhyming-jive style is "Fifty Ways To Leave Your Lover
." Also see TV series such as I Love Lucy
and other shows from the '50s or set in the '50s. Oh, yes, and in the film Grease
, the master of ceremonies at Rydell High's National Bandstand Dance-Off Contest explains the rules in rhyming jive. You can probably think of more examples, but do not confuse this with Cockney rhyming slang, which is a completely different speech pattern altogether.
Hipsters loved this stuff, you have enough? You get the point in this here joint? We'd better stop before we drop. Thanks for dropping by, McFly!