A junkie term used to describe when the blood flings out into the syringe from pulling the plunger. This is a way of knowing you hit a vein. The reason it's called 'the flag' is because when the blood comes out it has a flag-waving appearance.
Sally knew she hit a vein when she saw the flag, she carefully pushed on the plunger of the syringe and waited anxiously for the rush.
by tonitewedineinhell July 11, 2008
by sebassjit September 13, 2018
by x November 22, 2003
I botted with ICHC on Club Live and now I'm flagged and won't get my mother fucking prize! FML.
Am I flagged if I got an error while using CBX?
Yes you're fucking flagged.
Am I flagged if I got an error while using CBX?
Yes you're fucking flagged.
by A CL Botter May 02, 2009
by WaitIMSYDNEY November 28, 2019
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by Dirk May 17, 2004