kiss ass
US /kɪs æs/
UK /kɪs æs/

1.
拍马屁, 阿谀奉承
to behave in an excessively subservient way in order to please someone in authority
:
•
He's always kissing ass to the boss to get a promotion.
他总是拍老板马屁以求升职。
•
I hate how some colleagues just kiss ass instead of doing real work.
我讨厌有些同事只知道拍马屁而不做实事。