磨破嘴皮 mó pò zuǐ pí

DEFINITIONS

  1. to talk until one is blue in the face

CHARACTERS

磨 mó
HSK 6
grind; polish; rub; wear out; a millstone
破 pò
HSK 4
break, ruin, destroy; rout
嘴 zuǐ
HSK 3
mouth, lips
皮 pí
HSK 3
skin, hide, fur, feather; outer