The Louchebem reference article from the English Wikipedia on 24-Apr-2004
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Louchebem

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Louchébem or loucherbem is Parisian and Lyonnaise butchers' ( Fr boucher) slang, similar to Pig latin and Verlan. It originated in the mid-19th century. First consonant is moved to the end; followed by suffixes such as -ème, -ji, -oc, -muche; the letter "L" is placed at the beginning of the new word. Note that spelling often becomes phoneticized.

Some words from Louchébem, most notably "loufoque" have become common and moved into everyday slang.

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