OK, I found the recording by Gracie Fields, at The Internet Archive, Song #5 on that page, spelled there EEE BY GUM. I can now fill in my own gaps:


The Yankee says, "Gee whiz!" The Scotsman says, "Hoot aye!"
The Welshman says, "Indeed to goodness!" Goodness knows just why....

"'Od's boddikins" [sic] is what they said since Cromwell was a lad....

[And she adds a last verse:]

If a gee-gee he backs loses, or wins, or doesn't run,
Whether he wins or pays out, he says, "Well, I'll go to heck!"