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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.

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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