In "The Cat and the Fiddle," when Aunt Harriet asks Alfred to do the Catusi with her, he begs off by saying his dance career "ended with the Lambeth Walk" and pleads "War injury" by way of explanation.
I only just thought to look that up (I'd misheard it as "Lambert Walk"), and discovered this clip on YouTube.
Apparently it was all the rage in late-30s Britain. (It reminds me a bit of The Stroll, which came into vogue a couple of decades later.)
Stanley Ralph Ross loved these kinds of highly specific references, which sometimes makes me wish his episodes were footnoted.
The Lambeth Walk
Moderators: Scott Sebring, Ben Bentley
Re: The Lambeth Walk
A popular mid-80s Broadway musical "Me And My Girl" revived the whole Lambeth Walk thing which was where I first became familiar with it.
https://www.youtube.com/watch?v=3oimHJCURbo
https://www.youtube.com/watch?v=3oimHJCURbo