Buttkisser is a synonym of buttlicker.
As nouns the difference between buttkisser and buttlicker
is that buttkisser is a bowdlerization of kissass or asskisser while buttlicker is (pejorative) a contemptible person; an ass-kisser.
buttlicker
English
Noun
(
en noun)
(pejorative) a contemptible person; an ass-kisser
someone who performs rimming
Synonyms
* buttkisser
* asslicker