Definition of lick someone's boots in US English:

phrase

• Be excessively obsequious toward someone.

  Synonyms

  be obsequious to, be sycophantic to, be servile to, curry favour with, pay court to, play up to, crawl to, creep to, ingratiate oneself with, dance attendance on, fall over oneself for, kowtow to, toady to, truckle to, bow and scrape before, grovel before, cringe before, abase oneself before

  View synonyms