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
“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
by Capt. Chunkstyle June 5, 2006

by Light Joker May 6, 2006

Brian: hey Lucas, yellow squirtle keezy megaevolution ultraforms unite
Lucas: yeah nigga lets do it.
Lucas: yeah nigga lets do it.
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Dude 1: What are the colors of the rainbow.
Dude 2: Umm.. it's red orange yellow green blue indigo violet.
Dude 3 in the corner: HAHA! YOU GAY!
Dude 2: Umm.. it's red orange yellow green blue indigo violet.
Dude 3 in the corner: HAHA! YOU GAY!
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by im glenjamin December 6, 2006
