Top Definition
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
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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