SHIP'S CANNON
When a guy wips his dick out of your pants & it's so short- it looks like a ships cannon.
Piss was all over the top of the urinal because the guy was handleing a ship's cannon.
Heating up your ships main cannon
Masturbation,jerking off (usually males)
Child: *fapfapfap*
Mom:What are you doing I heard something?
Child:uhmmmmm nothing
Mom:Heating up your ships main cannon?
Child (silently:) FUCK
Mom:What are you doing I heard something?
Child:uhmmmmm nothing
Mom:Heating up your ships main cannon?
Child (silently:) FUCK