Related Clues:

• When repeated, a snicker
• Emulate a bloodhound
• Sound of disbelief
• 'All gone!'
• Sneaky-laugh sound
• Cold sound
• Sound of derision
• Show contempt
• Stiff drink
• Sound of a dud
• Bit of a chuckle
• Quick quaff
• 'They'll never suspect me!'
• Snicker syllable
• Skeptical grunt