Why is a jerry can called a jerry can?

Why is a jerry can called a jerry can? The name of the jerrycan refers to its German origins, Jerry being slang for Germans. The design was reverse engineered and subsequently copied, with minor modifications, by the Allies during the Second World War.

The name of the jerrycan refers to its German origins, Jerry being slang for Germans. The design was reverse engineered and subsequently copied, with minor modifications, by the Allies during the Second World War.
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