Related Clues:

• When tripled, and so on
• Boring, slangily
• Eliciting a "So what?"
• "And so on," when tripled
• When said three times, meaningless chatter
• Word for feeling lethargic
• "Been there, done that" feeling
• Not exactly a thrill
• Dull and uninteresting
• Third of a Seinfeld line
• Not captivating
• When tripled, a 'Seinfeld' catchphrase
• One-third of a verbal ellipsis
• Just so-so
• Not at all scintillating