Beach-la-mar|biːtʃlamɑː(r)| Also biche-. [Alteration of Pg.bicho do mar bêche-de-mer.] The jargon English used in the Western Pacific. 1911W. Churchill (title) Beach-la-mar.1912R. J. Fletcher Let. 10 Sept. in Isles of Illusion (1923) 61, I will omit the Biche-la-mar and give you the gist of his story.