Top definition
A sexual act where you pry open your partner's butthole and poop into it.
"I'm going out with Becky tonight. Don't come over after 9. I will be loading the cannon."

"I loaded that bitch's cannon last night."

"Dude! Who loaded my sister's cannon last night? There is shit everywhere!"
by Dick Trickle the 3rd November 28, 2011
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2
To place crack cocaine in a crack pipe for smoking
Yo, don't be loading the cannon in my car! Wait until you get home.
by A-Town Social Experiment May 24, 2008
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