Tic - tac - wikipedia Tic - tac For other uses, see Tic tac ( disambiguation ). Tic - tac ( also tick - tack and non-hyphenated variants ) is a traditional method of signs used by bookmakers to communicate the odds of certain horses. Until the turn of the 21st century it was a very common sight on racecourses in the UK, but with the advent of mobile technology it is now seldom seen. In 1999, only three practitioners were noted to be still working on the southern UK tracks -- Micky ' Hokey ' Stuart, Billie Brown and Rocky Roberts. A tic - tac man will usually wear bright white gloves to make his hand movements easily seen. A few simple examples of signals : Odds of 9 / 4 ( `` top of the head '' ) -- both hands touching the top of the head. Odds of 10 / 1 ( `` cockle '' or `` net '' ) -- fists together with the right - hand thumb protruding upwards, to resemble the number 10. Odds of 11 / 10 ( `` tips '' ) -- hands together and touching all fingers on both hands together. Odds of 5 / 4 ( `` wrist '' ) -- the right hand is moved to touch the left wrist. Odds of 33 / 1 ( `` double carpet '' ) -- arms crossed, hands flat against the chest. Within the UK there are some regional variations in the signals, for example in the south odds of 6 / 4 are represented by the hand touching the opposite ear, giving the slang term `` ear'ole '', whereas the same odds are indicated in the north by the hand touching the opposite elbow ( `` half arm '' ). Some of the signals may be called out verbally too. These names have evolved over time in a mixture of Cockney rhyming slang and backslang. For example, 4 -- 1 is known as rouf ( four backwards ). Essentially, bookmakers use tic - tac as a way of communicating between their staff and ensuring their odds are not vastly different from their competitors, an advantage the punters could otherwise exploit. In particular, if a very large bet is placed with one bookmaker, this may be signalled to the others as a way of lowering the price on all the boards. British racing pundit John McCririck uses tic - tac as part of his pieces to camera when explaining the odds of the horses for the next race. While this method of communication is used less frequently than before, many of the terms persist. Contents 1 Tic - tac terms 1.1 Odds 1.2 Other terms 2 References Tic - tac terms Odds 5 8 10 30 Levels ( you devils ) or Major Stevens or Straight up = evens Bottle Carpet Roof or Rouf 5 Ching or Hand or Handful Face Wrist 6 Exes or Xis Ear'ole Sais a wang 7 Neves or Nevis Neves to rouf or Shoulder 8 TH 9 Enin Shoulders or On the shoulders Top of the head 10 Cockle or Net 11 Elef Elef a vier Up the arm Tips 12 Net and bice 14 Net and rouf 15 Double tops 16 Net and ex 20 Double net 25 Macaroni or Pony 33 Double carpet 100 Century Burlington Bertie or Scruffy and dirty Bottle -- 2 -- 1 Burlington Bertie -- 100 -- 30 Carpet -- 3 -- 1 Century -- 100 -- 1 Ching -- 5 -- 1 Cockle -- 10 -- 1 Double carpet -- 33 -- 1 Double net -- 20 -- 1 Double tops -- 15 -- 8 Ear'ole -- 6 -- 4 Elef -- 11 -- 1 Elef a vier -- 11 -- 4 Enin -- 9 -- 1 Exes -- 6 -- 1 Face -- 5 -- 2 Handful or hand -- 5 -- 1 Levels ( you devils ) -- evens Macaroni -- 25 -- 1 Major Stevens -- evens Net -- 10 -- 1 Net and bice -- 12 / 1 Net and ex -- 16 / 1 Net and rouf − 14 / 1 Neves or nevis -- 7 -- 1 Neves to rouf -- 7 / 4 Pony -- 25 -- 1 Roof or rouf -- 4 -- 1 Sais a wang -- 6 -- 5 Scruffy and dirty -- 100 -- 30 Shoulder -- 7 -- 4 Shoulders or On the shoulders -- 9 -- 2 Straight up -- evens TH -- 8 -- 1 Tips -- 11 -- 10 Top of the head -- 9 -- 4 Up the arm -- 11 -- 8 Wrist -- 5 -- 4 Xis -- 6 -- 1 Other terms Beeswax -- tax Jolly -- a favourite Kite -- a cheque Knock -- not pay up when owing Pony -- £ 25 Ton -- £ 100 Monkey -- £ 500 A bag ( of sand ) -- £ 1000 Rock cake -- a small bet References Jump up ^ Waterman, Jack ( 1999 ). The Punter 's Friend. Harpenden, Herts, UK : Queen Anne Press. ISBN 1852916001. Jump up ^ http://promo-code.co.uk/a-guide-to-tic-tac/ A Guide To Tic - tac Archived September 30, 2015, at the Wayback Machine. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Tic-tac&oldid=824882552 '' Categories : Sports betting Languages of the United Kingdom Sign systems Hidden categories : Webarchive template wayback links All articles with unsourced statements Articles with unsourced statements from June 2009 Talk Contents About Wikipedia Français Edit links This page was last edited on 10 February 2018, at 02 : 41 ( UTC ). Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: who uses a signalling system known as tick tack
Answer: bookmakers