At the last meeting of Whitewater’s Common Council, on July 20th, one of the city’s common council members referred to a city bureaucrat as “Slick.” That’s Slick, as in “Come on up here, Slick.”
This was an official speaking in behalf of the council member’s agenda item, mind you. I’d guess the term was meant well.
I am sure, though, that the term never works well, under any circumstances. It’s not a term of endearment, and it’s too trite to work as an insult.
Best not to use it at all.