Judas window n. an aperture or glass pane that permits safe or surreptitious observation through a door or wall. Editorial Note: This is a variation on Judas hole, Judas trap, or just Judas. (source: Double-Tongued Dictionary)
Further reading
Sarah Jane in Tucson, Arizona, recalls hearing the phrase out where God lost his galoshes for any far-flung, hard-to-reach place. Similar phrases include where God left his overshoes, where Jesus lost his sandals, where Jesus lost his cap, where...
Whippoorwills, bob whites, and chickadees. How do we decide the names of birds and what to call their calls? Plus, the last syllables of Arkansas and Kansas are pronounced differently, but they come from the same etymological root. And: What’s the...