Old fashioned: (1) Courage, "It takes a lot of sand to face me down!"; (2) resolution, "It took a lot of sand for him to accomplish that task." See synonyms for Man Manly macho
To tell someone that what they want isn't going to happen. The concept of pounding sand is to do something pretty useless. You can hit sand all day long, it doesn't change at all. So by telling someone to "pound sand" you are telling them that they will never get their request.
The debt collecter threatened me but I told him to poundsand, that he wasn't going to get another dime out of me.
Not to be confused with sad penis a sand penis is a lump of sand that has made its way into the bottoms of a girls bathing suit, creating the illusion of a tiny little bob
Sally: Kate u have a sand penis Kate: it’s bigger that ur man’z
Sally: *dies*