When you get so bored at work that you spring wood. This actually makes it worse because now you have to sit there and still have nothing to do. However you can't get up to roam the office in search of killing the boredom due to your raging hard-on. These tend to last longer than regular boners.
I'm so f'ing bored sitting here but I can't get up to roam because everyone in the office will see my Boredom Boner. Shit I'm bored.