Top Definition
The illegal act of speeding up to a federally protected mailbox, stopping next to it, and proceeding to bash it into smithereens with a baseball bat or other destructive object.

(A baseball bat is the most commonly used accessory, however other efficient alternatives may include a sledge hammer, ax, bowling ball, or the vehicle itself)
(Usually done at night, in an infamous red jeep)
1. Are you guys down to do some postalpounding tonight?
2. I'm going to postalpound that big red barn shaped one tonight!!!
3. This whole town fell victim to the postalpound!
4. Batter up! Who's turn is it to do a postalpound?
by slickj October 14, 2011

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