The act of launching Legos out of your anus.
Ref. Lego loading
Last Saturday, Todd Lego cannoned the bartender at the club.
When you specifically put a quarter into your foreskin and sneezereally hard, shooting it out.
Hey, wanna go shoot a flesh cannon with the boys?
A sexual act involving two participants wherein participant A lays down on their back with their legs over their head. Participant B places a mound of cocaine on the anus of participant A and positions their nose over it. Participant A then proceeds to blast a powerful shart out of their anus as participant B inhales through their nose, propelling a shit-laced cloud of cocaine into the nose of participant B.
Larry, being an enthusiastic enjoyer of sniffing farts and doing cocaine, deciced to combine the two and try a muddy snow cannon with a local prostitute.
A upgrade plant in the tower defence game "Plants vs. Zombies" that requires two Kernel-pults in order to plant, plus it can be used to fire explosive corn cobs to deal colossal damage to zombies.
"I survived 30 flags worth with my Cob Cannon strategy."
A plant in the Plants vs. Zombies franchise which is an upgrade plant which requires 2 Kernel-pults to set down, but fires a huge explosive corncob at anywhere you target on the screen.
"I always love Cob Cannons because Survival Endless is super easy with this powerful plant!"
To honor a deceased individual by wrapping him in mummy-wadding and shooting him out da barrel of a heavy-artillery weapon.
In da famous early-1940's animated short, "Daffy the Commando", Von Vulture felt sure dat he'd most definitely done away with da perpetually-infuriating Daffy Duck (finally!) after loading him into da huge Howitzer ("Ah, now t'dry and duck ZIS one, you DUCK! Heil HITluh!") and detonating da powder-charge, but all dat actually happened was dat Daffy merely got "cannonized" --- i.e., shot out over Berlin as a "human cannonball"; he eventually landed near a crowd of citizens who were listening to one of Da Führer's infamous "screaming rant" speeches, and clobbers said loudly-verbose dictator over da head with a huge mallet.
To make something cannonic in real life, Luke something would be cannon in a work of fiction
That inside joke has been cannonized now!