裹脚布

Traditional (Taiwan): 裹腳布

guǒjiǎobù ㄍㄨㄛˇ ㄐㄧㄠˇ ㄅㄨˋ

    • long, tedious speech or piece of writing

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
foot-binding cloth
Meaning
The long strip once used to bind women's feet. Used for a long, tedious speech or piece of writing. Mocking.

Sources