Definition of Kilroy in US English:


proper noun

  • A mythical person, popularized by American servicemen in World War II, who left such inscriptions as “Kilroy was here” on walls all over the world.


Of the many unverifiable accounts of the source of the term, one claims that James J. Kilroy of Halifax, Massachusetts, a shipyard employee, wrote ‘Kilroy was here’ on sections of warships after inspection; the phrase is said to have been reproduced by shipyard workers who entered the armed services.