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

by Capt. Chunkstyle May 8, 2006

Mellow Yellow

Satan's Piss

Mellow Yellow:

A Redneck, "I drank some meller yeller today."
Not a Redneck, "Why would you drink that Satan's piss?"
A Redneck, "Trump told me to."

by seeker792 March 21, 2018

Mellow Yellow

To urinate as a verb or urine as a noun.

1.I'm going to the toilet for a mellow yellow
2.My carpet is ruined, it's covered in mellow yellow.

by Orchard Salami October 22, 2018

Mellow Yellow

MELLOW YELLOW
Something you drink when you want to hit HARD!!! Mellow yellow is a party drink when
you wanna have EXTRA FUN!🤩🤩

Person 1: Hey, can you pass the Mellow Yellow i wanna party up in here.
Person 2: YEAHHH BRO!!! IVE ALREADY HAD 10

by asa1221 April 17, 2019

Mellow Yellow

When you get kidnapped by a hippie then drugged, and for the finishing touch, you then become one with the waves by going through an initiation to turn into a hippie.

"Did you hear Sal? He got mellow yellowed last week."

"Yeah, so did Mary. Last time I saw her she yelled at someone to save the trees while smoking pot and shoving a dead squirrel into people's faces."

by Acidic1Vibes March 22, 2022