toady
toa-dy
verb
To flatter someone excessively and obsequiously for personal advantage.
"She would toady to the manager, hoping for a promotion."
noun
A person who flatters others excessively for personal gain.
"He was known as the office toady, always praising the boss."
Thesaurus
Synonyms: lackey, ass-kisser, crawler, sycophant, suck up, truckle, kowtow, kotow, bootlick, fawn