zipper
n.— «When he was running around shirtless this summer, Wyatt realized most other kids don’t have surgical scars—or “zippers,” as he calls them.» —“Fighting cancer, as a patient and a lobbyist” by Nina Petersen-Perlman Star Tribune (Minneapolis-St. Paul, Minnesota) Nov. 23, 2007. (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...
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 of terms for...