What is usually meant by the phrase "RewriteCodeFromScratch" but without the OxyMoron.
The OxyMoron comes from combining rewrite implying an existing source, and from scratch implying the opposite. As a figure of speech, RewriteCodeFromScratch highlights the waste. Underneath the rhetorical device, it means writing a new solution rather than modifying an existing one.
As an example, the ChryslerComprehensiveCompensation project was to replace many legacy payroll applications with a single new application.
See also ReWriting