Green’s Dictionary of Slang

sherbet n.

also sherbert
[Turk. sherbet (ult. Arab. sharbah, a drink), a cooling drink made of fruit juice and water sweetened, often cooled with snow]

1. [late 19C] grog or any warm, alcoholic drink.

2. [20C+] (also sherb) any form of alcoholic drink; usu. beer; also as old sherbert.

3. [1950s+] beer; also as old sherbert.

4. [2000s] cocaine [resemblance to a popular UK sweet, a sherbet dab, a bag of sherbet powder with a liquorice ‘straw’ through which it is sucked up].

In compounds

sherbet-can (n.)

a container for alcohol.