Kindating is when you date someone based on your and/or their kins. Especially if the kins are commonly shipped and/or in a canon relationship.
"Did you hear? Alex started dating Sam because Sam kins Crona and Alex kins Maka."
"Oh, that's interesting. Do you know why?"
"Yeah, Alex kindates. They like dating people based on their kins."
"Oh, that's what kindating means. I didn't know. Thank you."
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.