ˈ ̷ ̷ˌ ̷ ̷ noun
( plural yes-men )
Etymology: yes (I) + man
: a person who agrees with everything that is said to him ; especially : a self-seeker who endorses or supports without criticism every opinion or proposal of an associate or superior : sycophant , toady
depriving himself of the advice of all but timid souls and yes-men — Harper's
— compare no-man