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
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...
How and why do words from one language find their way into another? Vietnamese, for instance, includes many words borrowed or adapted from French, a vestige of colonialism. For example, the Vietnamese word for “train station,” ga, comes...