Related Clues:

• Jam in elbow to elbow
• Pull an all-nighter, e.g.
• Study hard for exams
• Big group of people
• Study hard and fast
• Bone up
• Prepare for exams, maybe
• Three, it's said
• Do some last-minute learning
• Pack (in)
• Learn a lot, say
• Pack full
• Squeeze (in)
• "The regular __ shuffles in": "Piano Man" lyric
• Study just before a test