Sean O sez, "Slim Gaillard was a jazz musician/vocalist popular during the late-30s/early-50s.
He popularized a 'Hipster's Argot' called 'Vout' which is present in lots of his recordings.
These scans are from a promotional leaflet that compile the various words of Slim's dialect.
So don't be a bringer-down and get mell-o-roonie, gate." That's strictly solid jack, let me lay a couple gas-meters on you. A babadiy be a babidy ba a babbidy boobie.
If you haven't heard Slim Gaillard's music (as heard in Jack Kerouac's On the Road, no less), go get some and have your lid flipped
(Thanks, Sean O!)