chatter bump
n.— «The bump course is used primarily for suspension and structural durability evaluation. It has four test sections consisting of resonance bumps, impact bumps, chatter bumps and inverted chuck holes.» —“TRC Draws the Auto World to Central Ohio” by Robert T. Host in East Liberty, Ohio Columbus Business Journal (Ohio) Nov. 1, 1986. (source: Double-Tongued Dictionary)
Further reading
Grant recommends the children’s book Dreams of Green: A Three Kings’ Day Story written by Mariel Jungkunz and illustrated by Mónica Paola Rodriguez (Bookshop|Amazon), about a girl and her family who move from Puerto Rico to Ohio and find ways...
David says that when he was growing up in Akron, Ohio, his family referred to the grassy area between the sidewalk and street as the devil strip. He’s since moved to Nashville, Tennessee, where he doesn’t hear that term. There are lots...