Ad for the Adnams Cask Bar, a pub run by British brewery Adnams on Newmarket Racecourse in the UK. The symbols in the first three images on the left of the poster match the cockney rhyming slang terms for money. Squid – Quid (1£). Diver – Fiver (5£). Senna – Tenner (10£). A “pony” is cockney slang for £25, a “ton” stands for £100, and a “monkey” is £500. Shown on the right are the comments of punters whose bets on the horses went a little wrong.