Synonyms of 'yes man'
sycophantDictionary, creature, minion
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If you refer to someone's minions, you are referring to people who have to do what that person tells them to do, especially unimportant or boring tasks.
She delegated the job to one of her minions.
A sycophant is a person who behaves in a sycophantic way.
a dictator surrounded by sycophants
Thesaurus for yes man from the Collins English Thesaurus
If you describe a man as a yes-man , you dislike the fact that he seems always to agree with people who have authority over him, in order to gain favour .