Group siren hattage is when a group of people, typically managers, are investigating one person in an attempt to get said person into trouble.
Sally was caught eating a chocolate bar during her shift, some serious group siren hattage had taken place that day when they were all swarmed around her, asking her all sorts of questions.
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.