Funky bull shrimp is the term you use when you are befucked by a certain person, place, or thing.
Person: You know what's some funky bull shrimp? When you have to go to church when you could be staying inside listening to your heavy metal legend of zelda theme remix.
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.