When you get a boner and there's no way or time to hide it from others sight. It's so big and flaring that it can't and won't go away and everyone sees it. Just like the devil is controling your weeny.Most likley ending in a huge orgy with everyone within a 666 mile radius.
clark: dude in p.e. last week i was eyeing sarahs booty it was tight, and gave a gnarly satan boner.Then, the teacher told me to stand up and demonstrate a pull-up.Dude everyone saw and laughed until the devil took over and we all had an orgy on the softball field.
tim: sounds cool she's hot.