When you get yourself a pile, stack, or bushel of women and stack them on top of each other. After stacking them you proceed to pound their pussies until satisfaction is achieved for all parties. Be careful if you are going to attempt a career as a pile pounder. Too much ass at once stacked upon each other has killed many men.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.