A friend who cheers for any team that is currently playing against yours.
Also, a friend who always cheers against your team because his/her team gives them nothing to cheer for.
The Vancouver Canucks just beat Chicago and are onto round 2 to face Nashville. James is going to be pretty upset, I wonder if he'll be Pulling a Mark Smith and cheer for the Predators now?
The principal was overstepping his authority and pulling a Mark Emmert when he cancelled the Homecoming Parade for four years, just because the boys' cross country team dressed up as seamen (semen, get it, haha).
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.