DuckCorp Dico

Found one definition

1.                 From The Jargon File (version 4.4.7, 29 Dec 2003):
                   
   
   
                   
                     
   machoflops
    /mach'oh·flops/, n.
       [pun on megaflops, a coinage for ‘millions of FLoating-point Operations Per
       Second’] Refers to artificially inflated performance figures often quoted
       by computer manufacturers. Real applications are lucky to get half the
       quoted speed. See Your mileage may vary, benchmark.