grow teeth
v. phr.— «A mysterious Taiwanese-born floor trader, Hwalin Lee, singlehandedly cost another CBOE clearing firm more than $50 million in a huge short position in S&P 100 puts that exploded into the money even before Oct. 19. In traders’ jargon, the puts “grew teeth.”» —“The Crash—One Year Later: In the Pits —How One Options Dealer Blew $9 Million” by Jonathan R. Laing Barron’s Oct. 17, 1988. (source: Double-Tongued Dictionary)
Further reading
While reading Great Expectations (Bookshop|Amazon) by Charles Dickens, a listener in Arlington, Texas, is surprised when one of the characters inherits some money, which Dickens describes as a cool four thousand. Were they really using cool that way...
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...