From The Internet Guide to Jazz-Aged Slang come the following copacetic words and phrases:

Places to drink:

• barrell house: illegal distillery
• drum: speakeasy
• gin mill: a seller of hard liquor; a cheap speakeasy
• joint: establishment
• juice joint: a speakeasy
• shine box: a bar or club for black patrons
• speakeasy: a bar selling illeagal liquor

Other drinking terms:

• belt: a drink of liquor
• bent: drunk
• bootleg: illegal liquor
• busthead: homemade liquor
• coffin varnish: bootleg liquor, often poisonous
• dead soldier: an empty beer bottle
• horse linament: bootleg liquor
• jorum of skee: a drink of hard liquor
• on a toot: a drinking binge
• rotgut: bootleg liquor
• snort: a drink of liquor
• strike-me-dead: bootleg liquor
• white lightning: bootleg liquor