sign-cutting
n.— «Some shifts he will spend tracking drug or human smugglers along desert trails using an age-old technique known as “sign cutting,” other times he may work a vehicle stop on a highway, or process detainees held at the station.» —“A Day in the Life of a Border Patrol Agent” by Tim Gaynor Reuters Dec. 20, 2006. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
Have you ever googled your own name and found someone else who goes by the very same moniker? There’s a word for that: googleganger. Plus, the language of hobbyists and enthusiasts: If you’re a beekeeper, perhaps you call yourself a...