When you have been drinking for an extended period of time and one's memory begins to fade due to the high blood alcohol content, yet can remember certain things/events, just not everything from that day/night.
When his friend Ian asked if he blacked out last night, Robby replied: "No, I think it was more of a brown out because I remember talking to that fat girl at the bar, but I don't remember seeing you."
by G Mace April 10, 2006
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Had a fart earlier but it turned into a soding brown out. :(
by Loaf May 22, 2004
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Similar to a blackout but with your face in a literal pile of Shit.
When I woke up my glasses were covered in shit. I must have had a brown out.
by Stone Cold Stunner December 20, 2016
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When you get so drunk at a bar that you shit in the urinal.
Dude, have you been in the Men's Room? Someone had a brown-out in there.
by DaR33lSlimShady February 28, 2018
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When you smoke a large amount of tobacco and get a massive head rush to the point where you feel like passing out. Symptoms include, dizziness, nausea, and vomiting.
Dude that cuban we smoked is gonna make me brown out, im so head rocked!
by 204kush September 4, 2012
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A moon that exposes the brown eye.

A mass mooning by several people that exposes all of their brown eyes.
250 guys had a brown out in front of the Phi Mu house on Saturday. You should have seen it!
by Cap'n Bullmoose May 13, 2005
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When you drink so much that you lose control of your bowel movements
Michael: “Is Dennis wearing brown pants with that brown shirt?”
Justin: “Nah man, his pants were white at first but then he started browning out from all the drinks”
Michael: “Woah...”
by Twizzlerizzler September 2, 2018
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