Related Clues:

• Not much cop
• 'Ho-hum'
• 'It was only OK'
• Word of indifference
• 'I'm not feelin' it'
• "Whatevs"
• "It's okay, I guess"
• 'I couldn't care less'
• "Not so great"
• 'I've seen better'
• Sound of indifference from pantomime horse
• "No big deal"
• 'Who cares'
• 'I'm underwhelmed'
• "No great shakes"