Brown Flu 

The flu-like symptoms that occur when a person’s heroin supply dries up.

“It’s been 2 days since I shot dope. That brown flu isn’t kicking my ass”

Brown Flu by erbuxx September 4, 2020

brown bottle flu

n. - a condition consisting of a headach combined with nausea and a sensitivity to bright lights and loud noises. Usually caused by a night of heavy drinking. aka - Hangover

Debbie called in sick today because she has the brown bottle flu.

brown bottle flu by MDM December 1, 2004

Brown Bag Flu 

A slang term for a hangover.

Originates from the brown bag that alcohol is placed in at liquor stores and the tendency to attribute a hangover to some sort of illness.

"Joe called in sick this morning"

"Man that fucker isn't sick he just has a case of brown bag flu"

Brown Bag Flu by ACRanger April 26, 2010

brown jug flu 

When you drink way to much and get sick that night and feel like crap in the morning or through the day

I have the Brown jug flu today guys . I drank WAY to much last night

brown jug flu by Lizzie4136 February 25, 2018

Brown Fluff

the brown bit's of turd mixed with fine fragments of toilet tissue that get left behind on the back of your toilet seat when you cannot be bothered to clean it.

got brown fluff?take two bottles of cleaner into the bathroom?? No! i just wipe my butt and go.

Brown Fluff by addynmaddy December 14, 2012

If it's yellow, let it mellow. If it's brown, flush it down

A phrase used to determine the appropriate circumstances under which to flush a toilet. Urine was to be left unflushed in the toilet bowl while feces were to be flushed right after bowel evacuation. This was used in efforts of water conservation either in the sense of environmental conservation or the saving of clean toilet tank water during power outages in remote areas.

“Man, don’t waste three gallons of water to get rid of a cup of sterile piss.”
“Why is that kindly hippy?”
“Just remember man, 'If it’s yellow, let it mellow. If it’s brown flush it down.'”
“Thank you, sir. Perhaps with the water we save in the crapper you might be able to bathe more thoroughly in the future.”

If it's yellow, let it mellow. If it's brown, flush it down

If it's yellow, let it mellow. If it's brown, flush it down by Capt. Chunkstyle June 5, 2006