Related Clues:

• Response to a backrub
• Open-wide word
• "That's better!"
• "That's the spot!"
• Woeful breath
• Unuttered 'Why me?'
• 'That feels good'
• [What a relief!]
• Sorrowful exhalation
• Sound from the lovelorn
• Exasperated exhalation
• "Oh, well" noise
• Breathy sound
• 'Oh, well' noise
• Spa sigh