Related Clues:

• When repeated, a 'Seinfeld' expression
• 'And so on' word
• "And so on" word
• Part of a phrase similar to 'blah blah blah'
• 'Blah' alternative
• When tripled, 'Blah, blah, blah'
• When tripled, phrase spoken by 25-Down
• When repeated, "Blah, blah, blah" kin