1. [late 19C+] (US, also greens, welcome green) money, dollar bills.
2. [20C+] a $1 bill; thus often in pl.
3. [1950s+] (US drugs, also green grass, Miss Green) marijuana, sometimes seen as low in resin and thus a weak strain.
4. [1980s+] (Aus.) a can or bottle of Victoria Bitter beer.
5. [1980s+] phencyclidine.
6. [1990s+] (Aus.) Victoria bitter beer.
7. see green money under green adj.1