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Research and Development (R&D) that has gone sour and lost money.
At one time, Netflix was the R&D shit. Now it's all Rust&Dust.
by William Dean A. Garner November 07, 2011
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Term used at auto dealerships to describe supplemental "paint protection" and rustproofing that is sold during the part of the sale where the financing is arranged. It is a source of "back end" profit for the dealer.
"That customer was a total lay-down; he bought Slip & Trip (disability insurance), Choke & Croak (life insurance) and Rust & Dust"
by St. Jerome December 09, 2008
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