Message indicating "adult beverages not supplied"

• Letters on a frat party invitation
• Invitation advisory, or a homophonic hint to the starred answers' starts
• Low-budget party letters
• "We're not supplying liquor"
• [Guests must provide their drinks]
• Invite abbr
• "We won't be bartending"
• T.G.I.F. party request
• "We're not serving liquor," on invites

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
initialism (acronym) for "bring your own bottle" or "bring your own booze," by 1951.