Green’s Dictionary of Slang

pepper-kissing n.

[euph. for ass-kiss v.]

(US black) attempting to put the best face on bad news.

[US]C. Major Juba to Jive 345: Pepper-kissing v. (1970s–1990s) to try to present bad news in a less than negative light; to send mixed signals; to sugarcoat the facts.