Extremely powerful insult usually directed towards someone when a more creative term than 'asshole' is needed. The implication is that the person is so amoral/stupid that they would fuck a gunt as opposed to a cunt. Reasons for this lack of proper copulation technique could range from indifference to desperation to a perverted sense of the need to humiliate oneself and sexual partner simultaneously.
Person A: Did you hear about Ronnie? He date-raped that retarded girl on Pearson Avenue.
Person B: Mikey's sister?!? That guntfucker! I'm gonna kill him.
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.
A "human" that spends so much time playing video games that their posture is level nerd neck. Everytime anyone goes tryhard they hunch down and their neck gets longer there fore a nerd neck is always hunched down cause they're always going try hard. In other words a nerd neck is a try hard, since their neck is 100% longer than the average human being due to playing too many video games and taking them serious, nerd necks are not even considered human anymore but something more sad. Nerd necks are often found on fortnite, their natural habitat usually being tilted towers.