hash
n.— «I served as a boatswains mate aboard the USS Yorktown from 1964-68. We called our underwear “skivvies” and the hard to wash out parts on laundry day were called “hash marks” (After the stripes on uniform sleeves denoting time in service, which are also called this.)» —“Skivvies” by jackalope47 Wordorigins.org Nov. 2, 2002. (source: Double-Tongued Dictionary)
Further reading
Language is always evolving, and that’s also true for American Sign Language. A century ago, the sign for “telephone” was one fist below your mouth and the other at your ear, as if you’re holding an old-fashioned candlestick...
Brittany in Green Coast Springs, Florida, says that when she was grumpy or irritated as a child, her mother would say a phrase that sounded like Don’t be such a scooch. This bit of Italian-American slang, often rendered as skutch, denotes a “pest”...