Editorial Note: Jocular or lightly derogatory. The Historical Dictionary of American Slang also records similar terms Oregon wrench (1958, included in the citations below) and canal wrench (1972) and there is an unpublished HDAS citation for big red wrench ‘an acetylene cutting torch’ (1933). The LOTJ mentioned in the citations is the Lexicon of Trade Jargon, an unpublished project of the Works Progress Administration.