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
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...