铁脚板

Traditional (Taiwan): 鐵腳板

tiějiǎobǎn ㄊㄧㄝˇ ㄐㄧㄠˇ ㄅㄢˇ

    • feet or person with great walking stamina

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
iron soles
Meaning
Feet, or a person, with great walking stamina. Approving or admiring.

Sources