chatter bump
n.— «A key issue is what the suit calls “chatter bumps,” which rural drivers refer to as washboards.» —“Condition of county road to factor in wrongful-death suit” by Steven Hepker Citizen-Patriot (Jackson, Mich.) Feb. 11, 2006. (source: Double-Tongued Dictionary)
Further reading
If you take up texting and social media late in life, there’s a lot to learn! A twenty-something wants advice getting her dad up to speed on memes, Instagram, and animated images. Plus, when you’re on a long road trip, what do you call...
Why do people say They don’t geehaw to mean “They don’t get along”? Geehaw, occasionally spelled jeehaw, comes from the calls people use to drive a team of animals, such as oxen, mules, horses, or sled dogs, gee being an...