后空翻

backward somersault / backflip

empress / queen / (archaic) monarch / ruler

back / behind / rear / afterwards / after / later / post-

empty / air / sky / in vain

to empty / vacant / unoccupied / space / leisure / free time

flip / somersault

to turn over / to flip over / to overturn / to rummage through / to translate / to decode / to double / to climb over or into / to cross

variant of 翻[fan1]