Related Clues:

• Drop heavily
• Effervescence
• Fall into a chair
• Settle down heavily
• Beanbag-chair sound
• Champagne sound
• Sound of Alka-Seltzer hitting water
• Sound with a splash
• Fall into a beanbag chair
• Settle heavily
• Fizz preceder?
• Sound of a drip
• Stone-in-the-water sound
• Diving sound
• Plunk down