单词bootlicker
n.: 马屁精
网络: 拍马屁者；谄媚；拍马屁的人
马屁精:
a person who is too friendly to sb in authority and is always ready to do what they want
佞人
Bob has always been a bootlicker.
鲍勃一直是一个惯于拍马屁的人。
He got the promotion just because he was a bootlicker to the higher-ups.
他就是因为拍马屁才得到了提升。
He is a bootlicker. I suppose that is because he is quick on the uptake.
他是一个马屁精。我想是因为他的理解能力很强。