sharp
adj.— «The technical term for the climber who goes first is the “leader”; that’s the climber on the “sharp” end of the rope—the end you can hurt yourself on.» —“A Match Made in Canada” by Michael J. Ybarra Wall Street Journal Nov. 12, 2008. (source: Double-Tongued Dictionary)
Further reading
We use the term Milky Way for that glowing arc across the sky. But how people picture it varies from culture to culture. In Sweden, that starry band goes by a name that means “Winter Street,” and in Hawaii, a term for the Milky Way...
When there’s no evening meal planned at home, what do you call that scramble to cobble together your own dinner? Some people apply acronyms like YOYO — “you’re on your own” — or CORN, for “Clean Out your Refrigerator...