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
Is there such a thing as a “neutral” accent, and if so what does it sound like? And that quirk in the way southern Californians talk about freeways. They’ll say things like take the 405 and get on the 8. Why the definite article...
Rachel in Cuyahoga Falls, Ohio, wonders: Why do some longtime married couples refer to each other as Mother and Father? This is part of a complete episode.
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