When an individual purposely leaves a used tampon to be found
Marsha used Red Flagging to warn Greg that her vagina is bleeding
by Cornelius Licorice November 11, 2020
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a sign or warning of any impending danger, disaster or doom
when my gf called me up that day and gave me the "we need to talk" line, a red flag obviously came up and I figured I'd soon be on the outs with her.
by Bungalow Bill November 18, 2006
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A 'red flag' is a term used to describe when somebody has a feeling that they are potentially dealing with a manipulative and/or possibly psychotic or sociopathic individual. It's usually used to explain a feeling after the fact.
It was a red flag when she told me that she had four kids from four different men.
by NotoriousBigG July 06, 2019
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Stopping what you're doing because because something has made the environment unsafe. Derived from the racing flag that is used to stop a race because of unsafe conditions.
"We're red-flagged at this gas station because it's snowing too hard for us to be able to go on."
by D2RCR January 31, 2004
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a bad sign of what’s to come
I think the first red flag was when my supposed date started lying to me a lot.
by nlolhere June 29, 2020
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1) Traditional symbol of socialist resistance.

2) in an Orwellian reversal, also the song sung by Blair and his cronies at Labour Party Conference
Red Flag (song), Blair version:

We'll suck up to the ruling class
We'll fuck the workers up the ass
And just to show that we're sincere
We'll sing the Red Flag once a year.
by annoyed anarchist May 28, 2004
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