The act of attracting large amounts of guys, usually unwanted. Guys that are attracted are usually guys that girls thought were uninterested, but turn out to be hardcore crushing. This is not to say that "Guynips" are hot, though that is a big part. Guynips are generally outspoken and confident.
A gay kid. This boy is still in the closet and is afraid to come out. He needs more friends that are accepting of him; so if you know a Gundip, let him know that you will accept him no matter which way he likes it!
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.