Grand Daddy Dick is when a woman that you're on a date with told you that her ex was getting Grand Daddy Dick from someone 25+ years older
Yo man, that chick was getting that GDD (Grand Daddy Dick) from a hero that was 61 and she was 22! If I was him that that would be awesome! Hell yeah brother!
A person never can get any fuckin' pussy living in the Goddamn ghetto unless he/she is paying for the services of aids, syphillis, gonorrhea, itchy balls/vagina, or an itchy crack.