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1.
Slang term for the male penis.
As soon as she put my custard cannon in her mouth, she was rewarded with a mouthful of ceam.
by urban pervert June 17, 2003
 
2.
the mysterious organ located between a man's legs that sprays goo all over unsuspecting females.
i shot your mom in the eye with a powerful blast of my custard cannon
by jizzcock June 16, 2003