The title is a phrase from “Let’s Dance” by David Bowie. There is a style of dancing called blues dancing, and my best friend* Jenn is now something of an expert in it.† If you’re not familiar with blues dancing, here’s a video featuring Jenn doing a piece she choreographed. The music is Hugh Laurie’s version of “St. James Infirmary.”
Blues dancing is also a form of social dance, generally done with a partner. Here’s a demonstration video, again featuring Jenn.
*Or possibly dire enemy
†This is a totally unbiased assessment. Really. Why don’t you believe me?