sharp
n.— «Knowing whether a line move is due to sharp or public action is important. A sharp is a term used to describe those who make a living off of sports betting. They wager large sums of money at numerous books, in hopes of gaining an edge. By no means are these folks always right, but their decisions are always well informed.» —“Where the smart money goes” by Sean Murphy Covers Experts Mar. 20, 2007. (source: Double-Tongued Dictionary)
Further reading
If you speak a second or third language, you may remember the first time you dreamed in that new tongue. But does this milestone mean you’re actually fluent? And a couple’s dispute over the word regret: Say you wish you’d been able...
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...