Bootlick

Origin

boot + lick

Full definition of bootlick

Verb

1. (transitive) To seek favor from by fawning, servile behavior.
• 2003, Todd DePastino, Citizen Hobo: How a Century of Homelessness Shaped America‎, He had no social position to protect, no employer to bootlick.
2. (intransitive) To engage in fawning, servile behavior.

Noun

1. (US) A toady or sycophant.