What is "saucering"

Usage examples of "saucering".

Now I do almost as much saucering as Doc, who knocks himself out selling pianos—he's a whiz at that—so he can divide the rest of his time between saucering, chess, and living it up.

At the big, long table, a man who looked much older than his mid-fifties sat saucering and blowing a cup of coffee.