This is a fakie or nollie 360 ollie. To do this you must be able to half-cab quite high, and it would help if you could already 360 ollie. Anyway, ride along fakie or nollie, and crouch quite low and twist your arms really far back. Start to swing them forward right before you ollie. Ollie and then keep yourself going. Keep turning around as far as you can (if you land just a little off a 360 do a pivot on the ground) and land back in fakie or nollie.