ringkisser 

brown noser

Boy, what he's a brown nose, a real ringkisser.

ringkisser by Johnny Brockton April 4, 2020

rimkisser 

One who habitually performs the act of brown-nosing or ass-kissing to an extent that that individual had his/her lips on the receiver's rectum.

Matt will do anything for Chris to make himself look better; he's such a rimkisser.

rimkisser by Dizzle37 December 6, 2006