snorkel box
n.— «He said the dropoff mailbox, or “snorkel box,” in post office parlance, will be located at the back of the parking lot near Foley Street.» —“Attention, Santa: all Bristol Postmaster Mike Parent wants before Christmas is a new parking lot” by Jackie Majerus Bristol Press (Conn.) Oct. 14, 2005. (source: Double-Tongued Dictionary)
Further reading
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...