| STREET TERM | DEFINITION |
| C & M | Cocaine and morphine |
| Cotton brothers | Cocaine, heroin and morphine |
| Dreamer | Morphine |
| Emsel | Morphine |
| First line | Morphine |
| God's drug | Morphine |
| Hows | Morphine |
| M | Marijuana; morphine |
| M.S. | Morphine |
| Miss Emma | Morphine |
| Mister blue | Morphine |
| Morf | Morphine |
| Morpho | Morophine |
| New Jack Swing | Heroin and morphine |
| Unkie | Morphine |