1. n. the act of fawning over and flattering people. (Rude and derogatory.) After his show of ass-kissing, Fred thought the judge would let him off with a light fine.
2. n. pertaining to the act of fawning over and flattering people. (Rude and derogatory.) Shut your ass-licking mouth and start talking straight, or I’m gonna bust you one. Get your ass-kissing butt out of here!