potato knife
n.— «“Potato knife” is believed to be Texas slang for a small kitchen knife with a four-to-six-inch blade.» —“Monster Of A Dad Chopped Up Girls Over $40″ by Marsha Kranes in Zion, Ill. N.Y. Post May 12, 2005. (source: Double-Tongued Dictionary)
Further reading
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...
Aubrey in Waco, Texas, says her mother used to warn the kids against contracting honkus of the bonkus, a fanciful name for a contagious disease. This colloquial term probably comes from the words bonk and konk, meaning “to hit” or...