台柱子

Traditional (Taiwan): 臺柱子

táizhùzi ㄊㄞˊ ㄓㄨˋ ˙ㄗ

    • star performer of a troupe
    • key member of a group

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
stage pillar
Meaning
The star performer of a troupe, or the key member of any group. Approving.

Sources