For some of these items you may just say, “Well, of course, you didn’t know that!?” Anyway, I just now realized what it means when I see “bump” or “bumpity bump” in a forum post. It’s a simple technique to get a discussion thread posted to the top of the list. Extensive description at the ever-loving Wikipedia:
http://en.wikipedia.org/wiki/Bump_%28internet%29
Also lead to the discovery of what a “backronym” is.