Monkey

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Monkey

In the United Kingdom, a slang term for 500 pounds.
References in periodicals archive ?
I was panicking a bit because he's never been injured since I had him, but the vet says the damage is to his monkey muscle and it might only be a lay-off of six weeks or so.
Tyrur Dylan sustained monkey muscle and shoulder ligament injuries in Saturday's second round of the Easter Cup when he noticeably faded on the runin.
"It started with a really bad wrist injury that we couldn't get right until Richard Torr tried a new treatment from America which cleans out the joint, but even then he hurt a metacarpal on the other foot and then tore a monkey muscle.