Top Definition
The art of getting a partner in the doggystyle position, then taking one's testicles and putting them in said partners butthole. You then get a jurassic erection, which resembles a cannon, then proceed to knock one out onto the partners back.
Oh man, i totally backdoor cannoned some girl last night, she was a slut, but a real champ about it. My shnutz were aching from all the butt action
by colin anus August 14, 2010

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