Money slang

[Truckie]

Some time ago I read that a bookie dropped a couple of "gorillas". My memory is hazy, but I thought this meant thousands; also that a spin was 5, a pony 25, a monkey 500. Could someone please help and/or correct, and add any others.

[jose]

redback/spider $20
eg lend me a spider mate.

[Chuck]

gorilla = $1000

[Chrome Prince]

$1,000 = Gorilla
$500 = Monkey
$100 = Frog
$50 = Camel
$20 = Salmon / Lobster

But there are hundreds of variations.