The word “slug” was probably popularized by wordpress thanks to its ability to build pretty looking urls or permalinks for all of your post title.
Cakephp has a class known as Inflector and a slug method which does the same thing to help you get a pretty looking slug for any text strings you pass into it. Here’s how.

Back when Oracle decided to acquire Sun (who had previously acquired MySQL), there were people who were concerned about the future of MySQL,