dirtboard
n.— «Up front is the Shockboard ($19) which utilizes an expanding wedge that fits into the bottom of the steerer tube. Once the wedge is secured, simply slide the fender, or dirtboard, as they’re called over there, into the slot until it clicks.» —“SKS X-Tra-Dry Fender” by Chris Cosby Dirt Rag Aug. 7, 2006. (source: Double-Tongued Dictionary)
Further reading
In 1916, a small-town newspaper in Pennsylvania printed a fanciful item about a local gathering with a guest list that included, among others, Miss Ella Vader, Mr. Ray Zor, and other punny names. This is part of a complete episode. Transcript of...
Jennifer, an elementary-school teacher in Tallahassee, Florida, loves saying the term chockablock, meaning “closely packed together,” and wonders about its etymology. Chock can refer to a kind of wedge used to hold something in place...