'The song cited is actually "Mambo Italiano" from about 1955..'

I remember that one - Rosemary Clooney is singing it in my head right now....

Hey, mambo! Mambo italiano!
Hey, mambo! Mambo italiano
Go, go, go you mixed up sicialiano
All you calabraise-a do the mambo like a crazy with a
Hey mambo, don't wanna tarantella
Hey mambo, no more a mozzarella
Hey mambo! Mambo italiano!
Try an enchilada with da fish a bac a lab and then a
Hey goombah, I love a how you dance a rhumbah


All the words are here.
It was the fashion to write songs with tricky, mock foreign words - maybe some were real but others were homophonic versions from people who didn't know the genuine article.
Robyn