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1. The act of having anal sex with a canine.

2. A curse word, to be uttered in moments of severe dismay or anguish.

3. An insult or suggestion, directed at those who have proven themselves to be an annoyance.

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1. "I'm off to the woods with lassie to bummadog real quick."

2. A: "I'm pregnant."
B: "Ohh... Bummadog."

3. A: "Dude... what's wrong with your face?"
B: "Go bummadog."
by samjamwich September 11, 2009
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