I had a student named Megan make this up and I really liked it. Now I share it with you.
Tip: Slurring the riff sounds together is an issue with this one. Add more pressure to the first sound (when going slow-medium) and/or approach the riff with a steeper angle to the floor.
Megamines Cramp Roll = megamine-cr
Tap Dance Move Shown by Rod Howell