Rant
From Army of Gnomes Wiki
Rant - an annoying tirade unleashed by someone very frustrated about a given subject. To see a rant in action, either ask Steve if he has DSL or broadband, or ask John to explain why sin x = x. For even more entertainment follow up the ensuing rant with your own rant about people who rant too much.
Rants can also exist in text. A prime example has been John's Blog as of late.