What does "slug" mean

Question

Possible Duplicate:
What is the etymology of 'slug'?

In CouchDB definitive guide the author used key "slug" in a document.

{
   "title": "Hello World",
   "slug": "hello_world"
}

What does "slug" mean and why is it used?

Answer 1

Slug is used to make a name that is not acceptable for various reasons - e.g. containing special characters, too long, mixed-case, etc. - appropriate for the target usage. What target usage means is context dependent, but in general case slug is a more appropriate combination of other fields. In the above case, only one field is used - title.

Have a look at these SOqs, too:

• What is a "slug" in Django?
• Replacing %20 with a Dash

If you are into the origin of the term, see this:

• What is the etymology of 'slug'?