mongo n. material or goods salvaged from items intended for disposal. Also as verb. Editorial Note: New evidence from the unpublished Lexicon of Trade Jargon, compiled by the Works Progress Administration, has a form of this word from before 1938: mungo, referring to the person who salvages discarded items, rather than the things being salvaged. This term appears to be specific to New York City. (source: Double-Tongued Dictionary)