How Much Is A Monkey Slang?

Pony, which is the equivalent of £25, tonne, which is the equivalent of £100, and monkey, which is the equivalent of £500, are the Cockney rhyming slang names for money that are most commonly recognised. A score is worth £20, a bullseye is worth £50, a grand is worth £1,000, and a deep sea diver is worth £5. These terms are also used often (a fiver).