Etymology
Advertisement

Kilroy

U.S. military graffito character, 1945, said to be either Sgt. Francis J. Kilroy Jr., U.S. Army Air Transport, whose friend or friends began writing his name everywhere as a prank; or war materiéls inspector James J. Kilroy of Quincy, Mass., who wrote "Kilroy was here" on everything he checked.

Advertisement
Advertisement
Definitions of Kilroy

Kilroy (n.)
a nonexistent person popularized by American servicemen during World War II;
From wordnet.princeton.edu