It's cockney rhyming slang
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Barbarossa is not my real name,
Tue 12 Aug 2008, 14:51,
archived)
Oh Llamas, of course.
By the way, it's Cockney SIGNING slang...

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Fresh Water Mole loves his baby boy more and more every day,
Tue 12 Aug 2008, 14:56,
archived)