gamma smile
n.— «Hardly a line of David’s trading argot will be intelligible to ordinary mortals, being riddled with references to gamma smiles, 25 delta EUR calls, short vega books and the like.» —“How to go bust in a state of bliss” Australian Financial Review May 28, 2004. (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...
Quiz Guy John Chaneski says he and his fellow puzzlers often kibitz over familiar riddles, thinking up alternative answers. For example, the answer to “What month do people sleep the least?” is “February,” because that month...