When one is engaged in doggy style in the backseat of a moving vehicle with the windows down and finishes by slamming into their partner hard enough to force them through the window at a passing vehicle.
Guy #1: "Remember that time you cannonballized Ali?"
Guy #2: "I'm glad we weren't moving that fast when it happened."
Guy #2: "I'm glad we weren't moving that fast when it happened."
by Namenlosen June 14, 2017

by Billbo998 November 6, 2015

A Cannonball is the act of indulging in one drug or alcohol then taking more right on top of that. It is not nearly as specific as most definers make it seem. Any time you use a drug or alcohol in rapid succession or simultaneously it can be considered a Cannonball. Even food can be cannonballed when you are eating your desert and scoop up some of your neighbors desert for a CANNONBALL!
Oh shit, Emily just cannonballed a Xanax bar on top of that suboxone!
Hey Mikey, cannonball that Patron' shot on top of that bowl you're smoking!
Hey Mikey, cannonball that Patron' shot on top of that bowl you're smoking!
by Freightrain47 June 7, 2018

A sexual act in which a man places a testicle into the woman's vagina and she queefs it back out with force.
by Tom Bry March 19, 2008

When a man farts while sitting on a nonporous (usually leather) seat and the gas expanding from his anus rapidly pushes his nuts forward, approximating the behavior of a pneumatic piston or cannon. Frequently catalyzed by the presence of tight pants and/or sweaty ass/thighs.
Dude, it was so hot this morning I was cannonballing all the way to work in the old Caddy. Gotta get me some cloth seats, or stop eating fuckin' breakfast burritos.
by Bendy May 22, 2006

by fiddle November 6, 2004

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.
by Persius April 4, 2007
