Keyword stuffing is what many websites do to get their listing in as many searches as possible. Many sites still use it, such as listing dozens of non-relevant names in their listing so that any word in any search will bring up their site.
I have seen a suggestion on “How to get more traffic on my website” to use the phrase “Angelina Jolie e-mail address” or any famous person on your site, and perhaps finish the sentence with “is nowhere to be found” or some innocuous ending.
I have found most crafts that I look up bring totally non-relevant listings because the owners use the words “crafts”, “Patterns” and such to bring up their listing on this very popular search.
If you look up “Free Stuff” or any search with the word free in it, such as “free online patterns” you will find dozens of non-relevant listings with the words “free shipping” in them. This is another suggestion on the “How to” site. Use the word “free” as often as possible, as in “free of defects” or “worry free” to get your listings in every search.