ass-licker

noun3

1. •
   (slang, vulgar) Someone who performs anilingus.
2. •
   (vulgar, figurative) Someone who succumbs to authority, someone who excessively flatters or submits to authority figures in order to gain favor or secure a reward.

   • If they’re to make anything of themselves, they must instead become ass-lickers, lap dogs and sycophants. — 2025
3. •
   (vulgar, figurative) Any contemptible person.