Related Clues:

• Hardly the life of the party
• Hollow out
• Dullard
• Tiresome one
• Evoke yawns
• Induce ennui
• Gasbag
• The death of the party?
• Tiresome sort
• Wearisome one
• Try one's patience
• Dull speaker
• Pain at a party
• Ho-hum character
• Crashing sort