Travolta Merkins

Picture Saturday Night Fever while doing Merkins. Start in plank position. The sequence is as follows: First move is a Merkin. 2nd move is right arm high. 3rd move is to reach under and across your body as far as you can. 4th move is to reach high again. 5th move is back to the Merkin. Flapjack with the left and then flapjack until you're sick of singing "staying alive, staying alive"