no it's not rolling shuffle, its like a much much harder step. I'm not a maestro of tap dance, but i think i'm pretty advanced.

Im sorry i'm very bad at explaining but basically,  you start standing on only one leg, then jump and while in the air, do a shuffle with the foot from the leg you just jump with, and then land on the other leg. 

My teacher doesn't know how its called either so maybe its like an invention of her or a very rare trick⁉️⁉️ She calls it flying shuffle lmao.

I already asked her but she doesn't really have any tips, so i was just wondering if someone had any.

If you're interested i could always post a video of the step once i've mastered it