cow’s head
n.— «Cow’s head: Refuel coupling on an aircraft.» —“Airport Lingo” by Raphael Sheffield Southwest Airlines Blog/Nuts About Southwest Dec. 10, 2007. (source: Double-Tongued Dictionary)
Further reading
A magnificent new book celebrates the richness and diversity of 450 years of written and spoken English in what is now the United States. It’s called The People’s Tongue, and it’s a sumptuous collection of essays, letters, poems...
If someone tells you it’s flisky or flobby outside, do you need to take an umbrella? A new book about England’s soggy climate includes 188 terms for rainy weather. Americans have their own joking names for local weather, from June Gloom in Southern...