Related Clues:

• Bit of scribbling
• Drawing in a margin, maybe
• Marginal writing?
• Quick sketch
• Kilroy, e.g.
• Not legit
• Aimless drawing
• Phoney, fake
• Fake or phoney
• Scrawl aimlessly or absent-mindedly
• Phoney, not genuine
• Not genuine, sham
• Sham, phoney
• Fake, phoney
• Sham, counterfeit