Discussion Forum—A Way with Words, a fun radio show and podcast about language

Whether it was a thumb, finger(s), or even toes (all of which were seen in my 4 younger siblings) my mother just called it "sucking." And this was in the Midwest. The only other use for "salt and pepper" I've ever heard, other than their normal sense as seasonings, is to describe the appearance of hair, usually a male's hair, that is just starting to gray. But then, I'm sure you already knew that.