Related Clues:

• Tiresome person
• Race for hot rods
• Gun barrel measurement
• Concept in fluid dynamics
• Force inhibiting progress
• Leave yawning
• Hint to a boring speaker
• Act that's 'contagious'
• Snoozefest
• Aerodynamics challenge
• It's contagious
• Produced, as fruit
• Betray sleepiness
• React to a bore
• Strip for racing