spider cleaning
n.— «As high-rise buildings mushroom across the city, facade cleaners—the ones who dangle from ropes to give those glass houses the impeccable look—are finding more jobs and more challenges.…“If a person hangs from a rope and cleans, the process is called ‘spider cleaning.’ When he sits on a seat attached to a pulley, it is ‘rig cleaning.’ In cases of spider cleaning, the rope will be connected to a pillar or an ‘I’ joint on the top of the terrace.”» —“Heights of cleanliness” by A Selvaraj Times of India Mar. 2, 2009. (source: Double-Tongued Dictionary)
Further reading
We use the term Milky Way for that glowing arc across the sky. But how people picture it varies from culture to culture. In Sweden, that starry band goes by a name that means “Winter Street,” and in Hawaii, a term for the Milky Way...
A librarian opens a book and finds a mysterious invitation scribbled on the back of a business card. Another discovers a child’s letter to the Tooth Fairy, tucked into a book decades ago. What stories are left untold by these forgotten...