lick someone's boots
US /lɪk ˈsʌm.wʌnz buːts/
UK /lɪk ˈsʌm.wʌnz buːts/

1.
拍马屁, 巴结
to behave in a very humble or subservient way towards someone in authority, often to gain favor
:
•
He's always trying to lick the boss's boots to get a promotion.
他总是想拍老板马屁来获得晋升。
•
I refuse to lick anyone's boots just to get ahead.
我拒绝巴结任何人只为了出人头地。