Related Clues:

• 'Yeah, right!'
• [Just like that!]
• Scornful sound
• 'Now you see it, now you don't!'
• Kaput
• [It's gone!]
• Fizzle sound
• Magician's word
• Magic word
• 'All gone!'
• Sound of a dud
• 'That's nonsense!'
• Fizzling-out sound
• ...
• 'As if!'