Upasna has the same sense as cute, but it’s a bit stronger. It’s a way to talk about a lighter, more playful form of beauty that can be applied to babies/kids, and people for whom you may or may not have a romantic attraction.
The word Upasna itself means that something which very bright and shining. It is a kind of beautiful and specifically used to describe feminine beauty. With this word, you can describe the beauty in a very light, manner full of energy.
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.