The state of a male being overly aroused in a public place.
Said victim will get to the point where all of their efforts to tame the beast look in vain. Even the least hottest things have the ability to start it up again.
The problem can involve a few false dawns of thinking you have it under control, only to find that you start to link everything back to your problem below.
1: "Did you hear about Mike from accounting?"
1: "He got all reserectile. They sent him home for the day to work it off"