bird dog
n.—Gloss: A person who guides an electrical crew to a repair site. «“There’s a lot of sign language for ‘don’t touch,’” said Andy Janosz, a switchman with PSNH in Manchester and the crew’s local “bird dog.”» —“Utility crews on scene in state speak 1 language” by Trent Spiner Union Leader (Manchester, New Hampshire) Dec. 19, 2008. (source: Double-Tongued Dictionary)
Further reading
A Philadelphia, Pennsylvania, listener has been pondering the saying It’s an ill wind that blows nobody good, and specifically whether she uses it correctly. The expression usually appears as It’s an ill wind that blows nobody any good, means that...
Language is always evolving, and that’s also true for American Sign Language. A century ago, the sign for “telephone” was one fist below your mouth and the other at your ear, as if you’re holding an old-fashioned candlestick phone. Now you can sign...