Wikipedia
Stand-off half or five-eighth is one of the positions in a rugby league football team. Wearing jersey number 6, this player is one of the two "half backs", in a team's back line, partnering the scrum half (Number 7). Also known as the pivot or second receiver, in a traditional attacking back-line play the five-eighth would receive the ball from his half back partner, who is the "first-receiver" of the ball from the "dummy-half" or hooker following a tackle. The role of the five-eighth from second-receiver was then to employ their creative passing skills to move the ball away from the congested mid-field further out along the backline to the "outside backs", the centres and wingers, who have more space to run with it. Furthermore, players in this position typically assume responsibility for kicking the ball for field-position in general play. The five-eighth is therefore considered one of the most important positions, often referred to as a "play maker", assuming a decision-making role on the field. Over time, however, as the game has evolved, the roles of the two halves have grown more aligned and difficult to distinguish. Along with other key positions, fullback, hooker and scrum half back, the five-eighth makes up what is known as a team's "spine". One book published in 1996 stated that in senior rugby league, the five-eighth and hooker handled the ball more often than any other position. The Rugby League International Federation's Laws of the Game state that the "Stand-off half or Five-eighth" is to be numbered 6. However, traditionally players' jersey numbers have varied, and in the modern Super League, each squad's players are assigned individual numbers regardless of position.
Usage examples of "five-eighth".
Next door a five-eighth moon with a white, wistful nun's face was peering in through the window at the sprawled naked beauty of a waiting Lysander.
He was married to Levi Zendt’s granddaughter, an irreverent dark-haired girl with five-eighths Indian blood and the appearance of an Arapaho princess.
In this he was supported by his wife, Pale Star Zendt, five-eighths Indian and as lovely as all the women of her family.
The two latter, with the greatest difficulty, recovered five-eighths of it in equal shares, but the three others each carried off one-fifth of the same.
Then, just to make it more interesting, I added a few fractions-seven and five-eighths, ninety-two and twelve thirty-seconds, and some other combinations.
It was largely the same gun, a stainless Ruger Super Blackhawk reworked by Magnum Sales, but this without a scope, the barrel only four and five-eighths inches long.
What you had was ruptures in a six-foot length of stainless-steel fuel line, five-eighths of an inch in diameter, carrying liquid hydrogen from the tank into the nuclear engine.
Inch-and-a-quarter steel tube for the steering head, parallel five-eighths tubes for the frame.