Down to the Wire and Hands Down

Here are two sports idioms from horse racing that have gone beyond the sport. Both contain "down."

When something goes "down to the wire" we mean it goes to the very end or last minute. "The election went down to the wire." The term comes from the length of wire that was once stretched across a racetrack at the finish line. Now, that finish is recorded electronically. The figurative use of the phrase goes back to about 1900.

Outside of horse racing, if someone said, "Hands down, this is the best pizza I have ever eaten." In that usage, it means unconditionally. It can also be used to mean something done with great ease.

In horse racing, when a jockey wins hands down, it means that when the jockey is certain of victory, he or she drops their hands and relaxes the hold on the reins. 

The horse-racing phrase was first cited by OED in 1867, and its figurative usage was noted in 1913.

Greenbacks, Bucks, Clams, Dead Presidents, Dough and Scratch

There are some informal (slang) names for U.S. paper currency. One fairly common term is "bucks." It likely originated from the early American practice of trading deerskins, known as buckskins, which were used as a unit of exchange. Over time, the term "buck" became a colloquialism for money. It's thought that this term was later applied to dollars and paper currency, becoming a widely used slang term.

The term "clams" for money likely originated in the mid-19th century in the United States. One theory is that it came from the expression "shell out," meaning to pay up or cough up money, which references the practice of using seashells, like clamshells, as currency or for decoration in some cultures. This term may have been shortened to "clams" as a slang term for money.

The term "dead presidents" likely originated in the late 19th or early 20th century, as many U.S. presidents were featured on various denominations of currency. The term gained popularity over time, particularly in the mid-20th century, as it became a common slang term to refer to paper money. It's worth noting that not all U.S. currency features presidents, but the term "dead presidents" stuck due to the prominent portraits of presidents like George Washington, Abraham Lincoln, and others on various denominations.

As with the previous terms, we have "likely" rather than definitive origin stories. The term "dough" for money likely originated from the idea that money is a vital resource, much like dough is a fundamental ingredient for bread. It's a basic necessity that helps things "rise" or progress. In the late 19th and early 20th centuries in the United States, "dough" became a popular slang term for money.

The term "scratch" for money probably comes from the idea of scratching out a living or making ends meet. It may also come from the notion of scratching together enough money to achieve something. In a street-level context, it might imply that it's a resource that's earned or scrounged up through effort. The term is often used in phrases like "scratch together" or "from scratch," emphasizing the idea of gathering or accumulating resources.

"Greenbacks" became a semi-official name for some currency in 1861when the Union introduced Demand Notes to fund the Civil War. United States Notes followed in 1862. Both were dubbed "greenbacks" due to their distinctive green ink, an anti-counterfeiting measure. 

As the first widespread US paper currency, these notes shared some similarities with today's bills, like the green color, but had notable design differences. Early $1 notes featured Treasury Secretary Salmon P. Chase and President Abraham Lincoln was on the $10 note. The backs showcased intricate wording or patterns, such as the crisscross sawhorse design. 

Initially, greenbacks were printed in larger sizes - 7 3/8 x 3 1/8 inches - until they were downsized to 6 1/8 x 2 5/8 inches in 1929.

Calling Dibs and Playing Jacks

Have you ever "called dibs" on something? Let's say that a group of people decide to rent bicycles for a ride, and one person says, "I call dibs on the red one." "First dibs" is sometimes called to establish a claim on the first use or the ownership of something. 

What does that mean and where did this odd expression originate?

This slang term has been in use since the early 19th century. The origin is disputed, but the most common origin story is that it comes from an old children's game called dibstones.

Dibstones is a child's game, similar to jacks and dice games. A dibstone is a pebble used in the game as a counter. The pebbles or the discarded knucklebones of sheep have been used since the late 17th century.

The game is from England, but the slang usage seems to be American. While playing, you can place a stone at your place to indicate a point. Similar to the modern slang usage, this means you have claimed a point.

To "call dibs" today is to claim a temporary right to something or to reserve it.

Pieter Bruegel the Elder - Children's Games - Knucklebones

The more common game of Jacks is also known as Knucklebones, Tali, or Fivestones. The games all have origins going back to ancient Greece and are mentioned by Sophocles and in the Iliad and Odyssey.

The games are usually played with five small objects (ten in the case of jacks). At one time, the game pieces were literally knucklebones, which are the astragalus bone in the ankle, or the hock of sheep. The jacks are thrown up and caught along with a ball or other object.

Modern jacks have six points/knobs and are usually made of metal or plastic. The simplest throw consists of either tossing up one jack, or bouncing a ball, and picking up one or more jacks/pebbles/knucklebones from the ground while it is in the air.

The games have a whole series of throws with odd names such as "riding the elephant", "peas in the pod", "horses in the stable", and "frogs in the well".

Sheep knucklebones used in the game

A variant on the previously mentioned games that is played by Israeli school-age children is known as kugelach or Chamesh Avanim ("five rocks"). Instead of jacks and a rubber ball, five die-sized metal cubes are used. The game cube is tossed in the air rather than bounced. 

here's also the Korean game Gonggi, another variant.

I was not able to find the origin and reason why the game or the game pieces are called "jacks."  Do any readers know?