zuǒ yòu kāi gōng

ㄗㄨㄛˇ ㄧㄡˋ ㄎㄞㄍㄨㄥ

1lit. to shoot from both sides (idiom)

2fig. to display ambidexterity

3to use both feet equally (football)

4to slap with one hand and then the other, in quick succession