A progger is a programmer who usually has some experience under their belt. It's unusual for a web designer to be labeled a programmer, but anyone who scripts can be labeled as a progger. Even if one simply edits their MySpace CSS* code by hand, they can be labeled a progger (but more commonly, script kiddies).
This term is sometimes typed as "progg'er" or "prog'ger."
* CSS stands for Cascading Style Sheets and is used to determine the layout (visuals) of a website, such as the font type, background images, and presentation of the site (such as where a paragraph is displayed on the page).
I just made all the font italics! I am quite the 1337 progger, yes?