When someone intentionally fucks up another person's chances because of laziness or out of self-interest.
The head-hunter cannonballed my job application because she couldn't trust that I would stay in the position for more than 3 months conflicting with her company policy.
See; Angry Pirate
When the aforementioned act is performed by two men on a single woman target at the same time, therefor, a double-team Angry Pirate. Thus, leading to "Cannonballed", which is often exclaimed after the act.
"Dude, we banged this chick last night, but she wasn't into creampies, so we fuckin' CANNONBALLED her!"
When a property owner knowingly reroutes dirty water (toilet water, dirty shower water, dirty sink water after doing dishes, etc) to the shower. Causing visitors to take showers in gross smelly water. Typically done at cheap motels and trailer parks.
Dude, what’s with the shower? The water smells gross.
It’s a cheap motel bro, they cannonballed the plumbing system.
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.