Definition of "bumper-to-bumper" []

• Traveling close together with bumpers almost touching: The cars were bumper-to-bumper in the tunnel. (adjective)
• Moving slowly or stalled as a result of tight spacing between vehicles: bumper-to-bumper traffic. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It was a nice break to get out of the hectic Dhaka bumper-to-bumper mentality and catch a glimpse of Bangladesh from the inside out, passing fishermen, waving back to children playing on the river banks and even getting the amazing thumbs up from a fully burka'd woman passing over a bridge."
• "My speeding abruptly turns into bumper-to-bumper crawling."
• "Anyone who has ever stewed in a stream of bumper-to-bumper cars or languished on a Metro platform after just missing a train has thought, "I could walk faster than this.""