\ˈbəmˈshə-fəl\ (noun) - the exaggerated way a panhandler will walk at intersections in order to get more money from motorists through sympathy or amusement.
CrazyBob's panhandling income increased 30 percent when he perfected the limp in his bumshuffle.
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.