Related Clues:

• Yawn-inducing speaker, say
• What unexciting drillers do?
• Tedious talker
• Droner, often
• Uninteresting storyteller
• Bored response
• ___ queen
• Bummer, so to speak
• Open wide, in a way
• Resistance to motion
• Dull fellow
• Real bore
• Proceed tediously, as a film
• Barrel's inside diameter
• Go on too long