jade berg
n.— «On the bridge this morning Tim the second mate spotted a “jade” berg. These are quite rare and distinctive for their opaque jade colour. This one was smallish and rounded like river stone. While no one is really sure, there is a theory that jade icebergs are formed on the bottom of the ice shelf where fresh water with algae in it has gathered and this causes them to go that colour.» —“Listening to Antartica” by Margot Foster ABC Rural (Australia) Mar. 3, 2005. (source: Double-Tongued Dictionary)
Further reading
Why does the term vegetarian cause so much confusion? Some people assume it means avoiding red meat but still eating chicken. And is there a term for a vegetarian who also eats fish and poultry? Plus, screwball comedies from the 1930s mix slapstick...
If you alternate alcoholic beverages with glasses of water over the course of an evening, you’re said to be zebra striping. This bit of slang was inspired by how the animal’s alternating black-and-white markings are like the contrast between the...