A phrase used to agree with an elder or superior (e.g. teacher) in order to annoy them. Often accompanied with patronising chav style finger clicks, to highlight how soled they are, and how soled the superior is.
Teacher: "Is everyone happy with exercise 3C, questions 6-9?"
Soled student: "Yes Boss!" (waves hand to click fingers)
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.