Judging by her fight with the post, I presume she tries to "suplex" her "opponent", misjudges the distance, grabs air, then whirls herself around in a backflip to land head-first on the ground.
EheAhurhururr...Ehehehe...EheOwwwgh...The hell?Hiryu-chan's hooooome!ROOMBA VS SKY DRAGONGot some guts, do 'ya...?