yes man
[noun]
Synonyms: sycophant, bootlicker (informal), crawler (slang), minion, timeserver, toady

[TahlilGaran] English Synonym Dictionary ▲

ˈyes-man noun (plural yes-men) [countable]
someone who always agrees with and obeys their employer, leader etc in order to gain some advantage – used to show disapproval

[TahlilGaran] Dictionary of Contemporary English ▲

yes man
someone who agrees with everything their boss or leader says in order to please them.
He denies that he's simply a yes man, and insists he'll be making major changes to the way the club is run.

[TahlilGaran] English Idioms Dictionary ▲

yes-man
a person who tries to be liked by agreeing with everything someone says (especially by a boss)
He is a yes-man who will do anything that his boss asks him to do.

[TahlilGaran] English Idioms Dictionary ▲

yes man
n., informal A person who tries to be liked by agreeing with everything said; especially, someone who always agrees with a boss or the one in charge.
John tries to get ahead on his job by being a yes-man.

[TahlilGaran] English Idioms Dictionary ▲