Sellout placard

• Sold-out show letters
• Hit show initials
• HUD offering
• Packed and then some, on B'way
• "No seats left" letters
• "No more seats," on B'way
• Like a hit show
• Problem for late arrivals, briefly
• Housing for the homeless: Abbr

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1941, initialism (acronym) for standing room only.