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A Romanian cannon is when one person had another person put a funnel in their anus. Then the other person pours vinegar down the funnel, then baking soda down the funnel. Very quickly before the reaction happens, they take out the funnel and insert a buttplug. Then they pick up the person and aim their butthole at the target. Wait a few seconds for the reaction to create more pressure, and then squeeze their stomach, blowing the buttplug out very fast, turning into a weapon of mass destruction.
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