Related Clues:

• Prepare for a selfie
• Tavern delivery
• Party congregation site, maybe
• Container for 29 Across
• Party vessel
• Fool — drinking vessel
• 'Animal House' party fixture
• Barrel at a bash
• Large container of beer
• ___ shot
• Saloon cask
• Frat party fixture
• Common frat-party sight
• Barrel of fun?
• Assault, in a way