My wife does this dance...Whenever she doesnt have to goto work the next day. It goes like this.

Effectively shake your hips like your doing the twist
Throw your hands in the air like you just dont care
Then you limp to the side like your leg was broken

While doing this say "I dont have to work to-morrow, I dont have to work to-morrow"

Then when your done, point at someone who does have to work tomorrow and laugh. You could say "in your face -insert persons name here-!!! hahahaha", but usually that statement is just implied.

There is a counter-dance that involves something like the mash potato and singing about the dishes needing done.

Hope everyone has a good weekend.