Gravy bum 

After doing a shit and not wiping properly, when your butt gets sweaty it produces a gravy like residue, Leaving marks on your underwear.

Check out the skids on peters boxers, pure gravy bum.

Gravy bum by Jimmywhack August 23, 2016

Gravy Bum 

What you should call your work colleagues if they ever have a sick day.

example 1: nice to see that your in today "gravy bum".

example 2: andys not going to be in today hes off sick.
"i bet he has gravy bum"

Gravy Bum by yesson20 December 18, 2011

gravy bum 

Used to describe the physical appearance of diarrhoea, including its often impulsive behaviour (and/or occurance after eating mcdonald's). Also used as crude humour to describe one's symptoms.

Joey's been knocked down with a case of gravy bum.

I got terrible gravy bum after having that quarter pounder!

gravy bum by Blank__ January 21, 2009

Bum Gravy 

Rich brown porridge issuing forth from the slimy sludge gates.

Jesus, that curry gave me bad bum gravy.

Bum Gravy by Rees September 15, 2005

Fiery bum gravy 

It is the result of eating a red hot curry and the effect on your natural bodily functions. It is easily identified by the orangey colouration and the burning pain caused when you visit the toilet.

"hey man i just went to the toilet after jacks mum after she had that vindaloo, and there was fiery bum gravy splattered all over the walls. Man she really needs to clean up after herself that was vile."

Fiery bum gravy by bigrodgerb May 14, 2010

bum gravy 

wet warm runny shit. sometimes returns even after you wipe (Dieareha)

man those tacos gave me some really bad bum gravy!

bum gravy by Anonymous May 15, 2003

bum-gravy 

sloppy shit; Diarrhoea

i had trouble wiping my bum-gravy

bum-gravy by KnightstarExpress May 21, 2003