I have an unconfirmed recollection that there was a revue called "Wait a Minim" at the Fortune Theatre in London, sometime around 1965, and this song was either performed in the show or released on record at the same time. Here are a few, sometimes tentative, suggestions.
I'm sure it was "nigger balls" and "Canada Dry" in the chorus. I think verse 3 has a rather different ending:
/Cos Willie's gonna moorer (sounds like) that lerrer Yankee/
Verse 4, after "Chevrolet" is
There's lots of sand and sea and sun/ And fish in the aquarium/ It's a lekker place for a holiday.
I think there was a disappointment verse, imperfectly recalled as
Ag, soos, Daddy/ If we can't go to Bioscope/ something something something, Life's a heck of a bore/ If you won't take us to the zoo / then what the heck else can we do/ but go on out and moorer all the uggies next door.
I also recall a "last try" verse:
"Ag, please, Daddy" which is cut off by the angry reply "Foetsaak!" (Be Off! Or something similar).

Apologies for hazy memory and ghastly Afrikaans orthography. Can I just say that for me one of the delights of Mudcat is the posting of songs that I thought no-one else in the world remembered, and the collective memory it draws from other contributors.

Malcolm Smith.