shuǎ zuǐ pí zi
to talk glibly
to talk big
to be all talk
dòng zuǐ pí zi
see 動嘴皮|动嘴皮[dong4 zui3 pi2]
mó zuǐ pí zi
to wear out the skin of one's teeth (idiom); pointlessly blather
to talk incessant nonsense
blah blah
mó pò zuǐ pí zi
to wear out one's lips (idiom)
to talk until one is blue in the face
to repeat again and again