throw it up
v. phr.— «She and other deputies exchange gang information. “Kids try to fly in under the radar, try to keep their gang links secret.” But, she said, you might see a student “throwing it up,” jargon for making gang hand symbols, and that’s when she moves in.» —“Resource officer battles gang activity” by Hugh Muir Free Lance-Star (Fredericksburg, Maryland) Nov. 6, 2007. (source: Double-Tongued Dictionary)
Further reading
How do you transform ancient Chinese script for use in the modern age? English uses a keyboard with just 26 letters, but the first Chinese typewriter looked like a small table under a huge disk with more than 4,000 characters. A new book chronicles...
Chase from Jacksonville, Florida, grew up in Sacramento, California, where kids played Rochambeau instead of rock, paper, scissors. Why the difference in names? Nobody knows. Folklorists call this a choosing game, and while the hand-game itself...