Source : Free On-Line Dictionary of Computing

snarf & barf
     
        /snarf'n-barf`/ Under a {WIMP} environment, the act of
        grabbing a region of text and then stuffing the contents of
        that region into another region (or the same one) to avoid
        retyping a command line.  In the late 1960s, this was a
        mainstream expression for an "eat now, regret it later" cheap
        restaurant expedition.
     
        [{Jargon File}]
     
        (1994-11-04)