square
n.— «Everybody makes money off “squares,” the derogatory term for amateur bettors Vegas types use only privately for fear of offending customers.» —“Football bettors put billions on the line” by Michael McCarthy in Las Vegas USA Today Sept. 7, 2005. (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...