The utmost mutually favored outcome/solution to an existing system or scenario which equally adheres to the preferences and favored benefits of all considered parties in a given collective.
Bob had a fish and needed a thimble.
Chad had a toothpick and needed a fish.
Ray had a thimble and needed a toothpick.
They all met together for a surpleasant trade.
or
Jess likes ice cream, and doesn't mind cake.
Jill likes cake, and doesn't mind ice cream.
Both Jess and Jill each have 1/2 of a whole coupon for an Ice Cream Cake; how surpleasant!
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.