When you read or witness something so good, either online or in the real plane, that your initial impulse is to 'Like' it, only to realize you are neither on Facebook nor reddit, you are a likehead. Your fix is the crack of the Internet. Mark Zuckerberg is your Walter White. You will be schizophrenic by the year 2015, and like to vomit if away from a scrolling screen for longer than half an hour.
TV: "...and the Boston Red Sox are the 2013 World Series Champions!!!"
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.