witness post
n.— «Sara Yurman, 33, is a geographer with the Gwinnett County planning department who specializes in mapmaking. She found a “witness post” in the Modoc community, a rare thing, so she said, that showed that Modoc sits 5 feet above sea level.» —“Cyclists head home to BRAG again with growing event” by Jim Galloway Atlanta Journal Constitution (Georgia) June 20, 1988. (source: Double-Tongued Dictionary)
Further reading
“What has a head like a cat, feet like a cat, a tail like a cat, but isn’t a cat?” Answer: a kitten! A 1948 children’s joke book has lots of these to share with kids. Plus: an easy explanation for the difference between...
When someone is perseverating or worrying too much, some Spanish speakers will suggest they stop obsessing with the phrase no te comas el coco. Literally, it means “don’t eat the coconut,” the word cocoin Spanish being slang for...