mowing the lawn
n.— «Maritime patrol planes fly a grid pattern over the search area, guided by GPS. They fly in parallel swaths over the ocean, in a process that pilots refer to as “mowing the lawn.” Flying at an altitude of 600 metres or less, pilots and crew watch for surface debris and fuel slicks.» —“How the hunt for the missing airliner will unfold” by Peter Cheney Globe and Mail (Canada) June 3, 2009. (source: Double-Tongued Dictionary)
Further reading
Claire from Philadelphia, Pennsylvania, shares a phrase dear to her late friend. Her friend was known for saying since Christ left Philadelphia, meaning “a very long time ago.” This expression fits a well-worn pattern of comic hyperbole using...
Greg in Mena, Arkansas, says that when he was learning to be a professional pilot, one of his instructors would say, You thought like Nelly if someone had thought they were doing something correctly, but failed to. Although the phrase is not that...