Possible Clues:

• "Beat it, ya varmint!"
• 'Scat!'
• Derogatory term for a fool
• Erin leaves igniter with local contemptible person
• "__ Along, Little Dogies"
• Barmy bloke
• Cowboy's "vamoose"
• Yosemite Sam imperative
• "Go on, scat!"
• "Scram!" in oaters