指着和尚骂秃子

zhǐ zhe hé shang mà tū zi

lit. to insult a bald man while pointing at a monk (idiom)

fig. to insult indirectly; to criticize obliquely

zhǐ

finger

zhe

aspect particle indicating action in progress or ongoing state

(literary) harmonious (variant of 和[he2])

shang

still

variant of 罵|骂[ma4]

bald (lacking hair or feathers)

zi

noun suffix, as in 椅子[yi3 zi5] "chair"