耍嘴皮子   Slick talk or lip service
【注音】shuǎ zuǐ pízi
【解释】卖弄口才，或光说不做。
Showing off one’s eloquence, or only doing glib talk with no action.
【例子】
例：我们需要实干的人，不要光耍嘴皮子的人。
Ex.：What we need is man of action but not those with lip service only.

说风凉话     Make sarcastic comments
【注音】shuō fēng liáng huà
【解释】出于嫉妒的心理冷言冷语讽刺别人（特别是做出了成绩的人）。
Make sarcastic comments against successful people because of jealousy.
【例子】
例：周小姐看见李小姐的工作出色，就到处说风凉话。

Ex.：Being jealous of Miss Li’s excellent performance, Miss Zhou spread sarcastic gossip about her everywher.