Lucy,
"Spicket" in the U.S. South may well be "spigot" in your neck.... I guess Dixie cups is an example of the brand name taking over the generic, as Jackie suggested. It's funny, though, the makers of Dixie cups live in the North of the US, not the South. If you ever get a chance, check out the makers of those little paper cups, both ice cream and drinking fountain. I'd be curious to know if they're made by a subsidiary of the Dixie folks.

As for "wig", I'd never have gotten that since I haven't a clue as to what "syrup of figs" is. A digestive aid, maybe?