拦马头

Traditional (Taiwan): 攔馬頭

lánmǎtóu ㄌㄢˊ ㄇㄚˇ ㄊㄡˊ

    • to stand in someone's way
    • to interfere with someone's plans

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
block the horse's head
Meaning
To stand in the way of someone's doing something, or interfere with their plans.

Sources