usually worn by mexican or any latin race to represent Brown Pride
look at his brown flag, he brown pride
by BP jc May 27, 2006
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When you shit yourself while racing in a motorsports event.
Renan thought for sure he was going to flip when he went off in Turn 9, but he collected it and kept racing, only to have to pull off the next lap for a brown flag.
by NASA_CRX May 22, 2008
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When you call BS on something, you Wave the Brown Flag.
English Teacher: Everything in this book is a symbol!!
Student: That's it, I'm Waving the Brown Flag!!!
by TylerDaniels April 27, 2012
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To assert that a statement or idea is bullshit. Analagous to throwing the penalty flag in (American) football.
Fox News is the finest example of unbiased, straightforward news reporting ever to grace the airwaves.

Man, I'm gonna have to throw the brown flag on that.
by Marlinspike March 30, 2010
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Usually a gay man into scat. “Flag” refers to the hanky code with brown representing… y’know
Jay: “If you’re interested, I flag brown.”
Chris: “Too late… where’s that hanky?”
by mrhankey666 October 31, 2023
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