矮一头

Traditional (Taiwan): 矮一頭

ǎiyītóu ㄞˇ ㄧ ㄊㄡˊ

    • to rank lower than someone
    • to feel inferior

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
a head shorter
Meaning
Same as 矮半截: to rank lower than, or feel inferior to, someone else.

Sources