This move comes from a Tap Dance Step, and you can find it in the B.S. Chorus routine. It is often part of the last phrase, right before the “trenches” and the “shave and a hair cut” steps. You can watch Charlie Honi Coles performing the B.S. Chorus, and the Over The Tops at 0:18. As well, you can watch the Copasetics performing the B.S. Chorus, and the Over The Tops at 0:21.
If you want to learn more about the B.S. Chorus, we recommend you to read this article, on Andrew Nemr website.
Even more information on the It Ain’t Over ‘Til The Fat Man Dances blog post.
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