Gang colors. Some people say that if more than 50% of your clothing is red or blue, you're "throwin flags"
Most often people won't think you're in a gang unless you're wearing lots of red or blue along with a red or blue durag and hat.
"Niggas wearin flags cause da colors match their clothes/They get caught in the wrong hood and filled up wit holes muthafucka" - 50 Cent
Word used for stamps in Prison. (i.e. a flag is often pictured on a stamp)
I'll give you 5 flags for the old issue of Buttman.
A junkie term used to describe when you slowly pull on the plunger on the syringe, the blood will shoot into the syringe, having a flag waving appearance. This is a way of knowing that you've hit a vein.
remember kiddies, if it's red(dark red, vein) go ahead, if it's pink(bright red, artery) stop and think
Sarah knew she hit a vein when she saw the flag. She then pushed on the plunger to get the H in her system.
When you're in a chess match, and you're running low on time so the opponent decides to insta-move or premove his pieces to time you out and win. Be faster and don't get flagged!!!
Anish Giri: has 5 seconds on the clock
Hikaru Nakamura: premoves the rest of the match
Anish: Not cool, Hikaru just flagged me!
Hikaru: There chat, I flagged him for content
US Military terminology: the act of pointing the barrel of a firearm at another member of the US Military. Used especially during close-combat situations and during training.
During basic rifle marksmanship in basic training, a private got tackled for flagging a drill sergeant.
When clearing rooms, you must pay close attention to your muzzle so as to not flag your buddy.
To start getting tired, lose energy or enthusiasm.
This could mean it's time for a coffee, red bull, power nap or swift exit.
"I'm starting to flag"
"He's really flagging now"