三寸不烂之舌

to have a silver tongue / to have the gift of the gab

three / 3

a unit of length / inch / thumb

no; not so / (bound form) not; un-

soft; mushy / well-cooked and soft / to rot; to decompose / rotten / worn out / chaotic; messy / utterly; thoroughly / crappy; bad

(possessive particle, literary equivalent of 的[de5]) / him / her / it

used in 喇舌[la3 ji1] to transcribe the Taiwanese word for "tongue"

tongue