throwing signs
v. phr.— «Just outside El Paso County Jail, women show up daily to “throw signs” to their men, spied in silhouette at the long, narrow windows of their cells.…Being attuned to fringe communication, he was intrigued in 1994 to witness gang members “throwing signs” to one another.» —“Outside Jail, A Dance Of Love” by Teresa Annas Virginian-Pilot and The Ledger-Star (Norfolk, Va.) Feb. 19, 1998. (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...