关上门打狗

Traditional (Taiwan): 關上門打狗

guānshàngméndǎgǒu ㄍㄨㄢ ㄕㄤˋ ㄇㄣˊ ㄉㄚˇ ㄍㄡˇ

    • to lure an enemy in and wipe them out with no escape
    • to set a trap

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
shut the door and beat the dog
Meaning
To lure an enemy in and then wipe them out where they cannot escape. Describes a trap or tactic.

Sources