Related Clues:

• Kept going and going
• Was garrulous
• Yakked and yakked
• Rambled, perhaps
• Went overlong
• Continued and continued
• Used as fuel
• Went too long, as a sentence
• Babbled interminably
• Was overlong
• Kept going (and going)
• Spoke at greath length
• Went uninterrupted
• Monopolized a conversation
• Talked for hours