Green’s Dictionary of Slang

white stuff n.

1. [mid–late 19C] anything made of silver [white adj. (1)].

2. [late 19C+] (drugs) morphine or heroin [stuff n. (5)].

3. [1920s] (US) grain alcohol used for making illicit liquor.

4. [1920s+] (drugs) cocaine [stuff n. (5)].

5. [1930s] (also white slufe) opium [stuff n. (5)].

6. [1940s] diamonds.

7. [1950s] large denomination notes [large ‘white’ £5 notes].

8. [1980s] (drugs) Demerol [stuff n. (5)].

9. [1980s+] (US) any clear coloured alcohol.