Related Clues:

• Jam-pack
• Bunch of people
• Large group
• Mob
• Flock
• Three, per an adage
• Get close to
• Get too close
• Roaring group
• Jam in elbow to elbow
• Big group of people
• Three, it's said
• "The regular __ shuffles in": "Piano Man" lyric
• Get too close for comfort
• A hush may fall over it