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A large mammal that outdraws others in poker.
Your friend plays poker often. Unfortunately he makes horrible decisions that work out for him. This friend may have a birthmark on his bald head that looks like a blowhole (whale.) When he outdraws you on the river with the one card in the deck to hit a straight flush, you've been blow-holed.

You rivered me again! You blowhole (whale)!
by Rafael Martinez October 24, 2006
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