1. [mid–late 19C] (orig. US) alcohol; thus get good, to get drunk.
2. [1970s+] (drugs) phencyclidine.
3. [2000s] heroin.
4. [2000s] marijuana.
SE in slang uses
[1950s+] (Aus.) of a man, to seduce, to gain a woman’s sexual favours.
1. [late 19C] to make money (e.g. by a successful wager).
2. [1950s+] to improve one’s situation.