bomber’s moon
n.— «When the novel opens, Harriet is atop Coventry’s cathedral watching for fires. Jeremy is on another part of the roof, and both are at the mercy of a bright, full moon, commonly called a bomber’s moon. It soon becomes evident that the Luftwaffe has no intention of wasting such precious light.» —“Beauty in the midst of war” by James MacGowan Ottawa Citizen (Canada) Sept. 21, 2008. (source: Double-Tongued Dictionary)