A dank ass strain of marijuana. It's parent plants are (Big Bud
x Purple Erkle
). Whoever thinks otherwise is wrong. Usually classified as 'exotic'. It has purple leaves but is not completely purple. Looks frosty with trichomes and has lots of orange hairs. Smells and tastes great and fruity, like its parent plant, Purple Urkel. Very potent. Sometimes expensive (20-25 a G)Commonly called 'GDP' for short.
Lucky Dude: Damn, I just got a quarter of some dank purp
, man, it's GDP
Unlucky Dude: Damn, man, Grand Daddy Purple? All i can find is bammer weed