panty pounder Share definition Flag A person who finds a relatively large amount of enjoyment in pounding girls' panties. Another way to describe the act of humping. Josh is such a panty pounder! All he does all day is hump girls. panty pounder by 1DE October 2, 2009 0 0 Get merch Get the panty pounder mug. Buy Now — $32.95 See more merch