Possible Clues:

• Sandbox boo-boo
• Stubbed piggy toe, e.g
• Playground injury
• Scrape, in totspeak
• Minor injury?
• Boo-boo, in kidspeak
• Scrape, in kidspeak
• Skinned knee, say, to a tot
• Something Mommy needs to kiss?
• Scraped knee, to a toddler