Related Clues:

• Laugh at Archimedes' fourth eureka
• Exclamation of surprise when doubled up in laughter
• Hospital with a fence sunk by Paddy Clarke
• Laughter's boundary
• That's lovely, so lovely! Turning over, I won't interrupt the view
• Sunk ditch - laugh!
• Park ditch
• Laugh - ditch acting as fence
• Laugh
• Ditch acting as a fence
• Concealed ditch in landscape gardening
• 'That's funny!'
• 'Ver-r-ry funny!'
• "Oh, very funny!"
• Prankster's laugh