shuǎ​zuǐ​pí​zi

empty talk

耍嘴皮子 shuǎ​zuǐ​pí​zi
empty talk expression
to talk big or be all talk without following through with action
glibness expression
to talk glibly or smoothly, often using clever words to mask a lack of sincerity

Frequency

Movie subtitles
0.890 per million appears in 0% of films
Written text
0.153 per million

Sources

Definitions
CC-CEDICT