Origin: after E. A. Murphy, Jr., U.S. engineer who formulated the orig. version (1949)
Used by arrangement with John Wiley & Sons, Inc.
Origin: From the name Murphy.
murphy's law - Business Definition
murphy's law - Cultural Definition
A rule that states, “If something can go wrong, it will.” An addition to this law reads, “and usually at the worst time.” The identity of “Murphy” is unknown, but the saying was first used during the 1940s and may have originated with members of the armed forces in World War II.