Green’s Dictionary of Slang

(US black/drugs) average-quality or second-rate marijuana.

2002		South Park Mexican ‘Beach House’ 🎵 I sell reggie, but I smoke hydroponic.
2004		Crime Mob ‘No Joke’ 🎵 I’m known for smoking men, but never smoking reggie miller.
2008		Z-Ro ‘Top Notch’ 🎵 I don’t fuck with reggie miller.
2011		Khaled ‘Future’ 🎵 All you smoke is reggie.