the moment at which someone (or something) who has been consistently dependable suddenly collapses or disintegrates, due to age or any other factor
this phrase was popularized (and perhaps created) by Bill Simmons of ESPN as a candidate to replace jump the shark, it references the decline of the NBA's Gary Payton which became shockingly apparent in the 2004 NBA playoffs
Before marrying my girlfriend, my intuitions warned me that her libido eventually will goGP on us.
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.