You can hear this at YouTube.


DOWN WITH DORA
As recorded by Mr. Flotsam & Mr Jetsam, 1932.

1. Dora is a girl who came to see us long ago.
No one did adore ‘er ‘cause she wasn’t nice to know.
Now she’s old and ugly and her skirts are far too long.
That is why I want to introduce this little song.
Dora says you can’t do this and that and these and those.
Dora doesn’t know the war is over I suppose.
Captain Percy Davis does and so he’s done a deal,
And to ev’rybody now he’s making this appeal:

CHORUS: Down with Dora! Dora's doom is nigh.
Down with Dora! Dora's due to die-tiddly-eye-tie.
Don’t you all agree?
Won’t you sing with me?
Eena-meena-mina-moe and out goes she.
Hark! Hark! The dogs do bark,
And ev’ryone’s determined to ignore ‘er.
Your MP, see that he learns to sing this little glee:
Do-re-mi-fa-so-la-ti-do
Down with Dora!

2. If you know a little man who keeps a little shop,
Dora says at eight o’clock his sales have got to stop.
If you buy a penny box of matches after time,
Dora says that both of you are guilty of a crime.
If you’re feeling blue because you’re not quite in the pink,
After ten o’clock you mustn’t buy a little drink.
What of “Rule Britannia” and that Britons shan't be slaves?
Yet they go and treat us like a lot of bally knaves. CHORUS.

- - -
I was able to figure out that DORA refers to the Defence of the Realm Act 1914. Wikipedia doesn’t say when its provisions expired or were revoked, except that some pub-closing hours remained in effect until 1988.

I still haven’t figured out who Captain Percy Davis was.