Related Clues:

• Study hard and fast
• Bone up
• Prepare for exams, maybe
• Read up on
• Do some last-minute learning
• Pack (in)
• Learn a lot, say
• Something to do at a library
• Pack full
• Clue room
• Prepare for a test
• Squeeze (in)
• Study just before a test
• Cram, perhaps
• Learn a lot quickly