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1.
Verb. When two people celebrate or greet by creating a fist with their (right or left) hand and fist bump. During the act of a pound dog the two people sometimes are known to say “pound dog”.

Pound dog usage occasions: after a touchdown, when greeting each other, after a strike at the bowling alley, during a positive business meeting, after a great game, etc.
Example: Scott gave Chad a pound dog after a rock solid presentation.
by The Dog Master November 12, 2009
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