Devil's Dance 

When two or more people are having sex and you can hear/sense it.

Jack: Do you hear that noise?
Andrew: Oh that's just Nick and Casey doing the Devil's Dance

Devil's Dance by Lotteryinmypants March 31, 2015

Devil's Dance 

In 3 lanes of traffic, when two cars in opposite lanes (ie: slow and fast) continuously switch places at high-speeds and come within 2 inches of hitting each other. Used by douchebags (or teens) to piss off all drivers in the immediate vicinity. Pulling this off requires great timing, patience and a LOT of balls. Typically seen in D.C., Chicago, Miami, and New York.

Seth: Dammit, why today?
Ari: What?
Seth: Dave and Eric just did the devil's dance, and now there's a shitload of traffic thanks to the accident.

Ari:........Shit.

Devil's Dance by Shin. June 28, 2010

Dancing with the devil's wife 

Doing something dangerous. Often used as a warning.

Guy A: I'm going to flirt with that girl.
Guy B: You know she's going out with the captain of the football team, right?
Guy A: Yup.
Guy B: You're dancing with the devil's wife.

Dancing with the devil's wife by KD5PBO July 22, 2008