Brown Rain 

When a large and often solid turd is passed, there may be a phonomemon that occurs. This is where the large turd is so solid, that it refuses to allow water to penetrate it.
After the hench shit has been passed, the afflicted may be struck down by "brown rain".

The excess water left from above the offending shit can just fall out. This is especially worrying if a "pink sock" has been created by said shit.
And no, it doesnt drop straight into the bowl, 9 times out of 10 it will run down your arse cheeks, covering the floor with the thin wet shit.

"You know i ate sunflower seeds for 3 weeks ?"
"Yeh.....youre a dick"
"I just found out why the package carried warnings"
"Brown Rain ?"
"Aye. I stood up to admire the work and before i realised that shit was EVERYWHERE"
"I know the feeling padré"

Brown Rain by Watko January 17, 2007

Brown Rain 

A name of a cocktail self created using a soda fountain in a fast food chain where you mix: Cola, Lemonade, Orange soda, and Cherry coke. to create a Brown fizzy drink.

I am going to refill my Cola with an ice cold Brown Rain

Brown Rain by carrera-champion January 18, 2017

brown rainbow 

taking a dump two feet behind someone's bedroom door then closing it behind you.When the chump opens the door all the way he smears the turd into the carpet in a lovely rainbow design.

they'll be scrubbing that rug for a week before they erase the brown rainbow I left them

brown rainbow by rod fury May 2, 2006

brown rainbow 

A term used to describe the effect on a man's penis when having doggy style intercourse with a woman who wipes from back to front, thus leaving a small amount of feces around the entrance to her vagina.

My friend was fucking Misty from behind, and after he pulled out he noticed he had brown rainbow. Misty is a dirty ho.

brown rainbow by JasonW October 27, 2005

brown rainbow 

a cleveland steamer, but between homosexuals. when a gay person (rainbow) has a bowel movement (brown) on their partner's chest as a sexual fettish.

Larry & Carl were kinky homos, they liked to give each other a brown rainbow once in a while.

brown rainbow by dude98765 October 3, 2011

Raining in brown town 

To have very loose or watery bowl movements. Diarrhea.

I was totally excited for my day off until it started raining in brown town and ended any fun I was about to have.

Raining in brown town by Markhitz September 8, 2009

Browntain 

A fountain-like diarrhea emitting from one's anus.

Scott had a massive browntain that kept him on the jon for hours.

Browntain by Poopfan September 28, 2008