You propose to a girl by putting the ring in a beer preferably a PBR or Natty light. She then drinks the beer without knowing the ring is in it and accidentally swallows the ring. You then dig through her poo to find the ring and propose....
Girl: Im engaged
Girls friend: How did he propose?
Girl: I drank a PBR and swallowed the ring on accident. Later on that night I pooped the ring out. He then found the ring in my poo, got on one knee, and gave me a pooprosal.