打蛇打七寸 Origin — Chinese Character Wiki

dǎshédǎqīcùn

hit the target where it hurts

打 dǎ verb

to hit

to strike; to knock; to beat; to break
蛇 shé noun

snake

snake; serpent
打 dǎ verb

to hit

to strike; to knock; to beat; to break
七 qī numeral

seven

seven; 7; (banker's numeral) 柒 qī
寸 cùn noun

cun

Traditional Chinese unit of length, equivalent to one-third of a decimeter (approximately 3.33 cm); also known as the Chinese inch.