BumCrust 

Originating from Egypt, Bum crust describes the phaecal matter that is not properly wiped from the rectum after excreting phoeses. Consequently, the remaining phaecal matter hardens and becomes entwined within the Pubic hair to form what is known as "BumCrust". See arse biscuits

"Ah shit, we ran out of bog roll, I'm like a bum crust factory!"

-or-

"Uhhhh, there's all bum crust in ma pants, Anyone got Scouring pad?"

BumCrust by Chris Lawlor June 19, 2004

Bumcrust 

When your leftover poop sticks to your ass hair and creates a layer of crust known as bum crust

My special Moldovan friend has bumcrust

Bumcrust by Deathninja155 February 25, 2022

bumrust 

The brown fecal colour and flakes that appear around an anus.

When she bent over, Kyle could clearly see a ring of bumrust around her anus.

bumrust by jungletriad December 5, 2004

Bum Crust 

Bum Crust is a wholesome, healthy, organic food supplied by a dealer. It's sacred and, if distributed fairly, could save world hunger. A single gram to have all the nutrition you need for 3 days! Unluckily many people are trying to steal it due to its value. Healthy bum crust usually takes about 2 years to mature, and stealing it beforehand could be detrimental to your health! It needs to be farmed using a special Crustinator at around 18 months and then left to ripen in the Crustation Facilities. But there is always the risk over over-maturing, consequently this removes the nutrients so, you are actually eating plain, hardened poo. To be safe on the matter, you can always contact your local dealer who shall point you in the right direction. At the moment we are still researching the full potential of the crust and it's not for the public to consume. But it could solve food problems in the future

Mano: Krithik, you got the bum Crust?
Krithik: Yes I do, but it's not for you to eat as of yet, it needs to ripen
Mano: KRITHIK I DEMAND YOUR CRUST NOW
Krithik: No Mano, we need to give it to other people, you can't eat it all!
Mano: Let me at your farms
Krithik: NOOOOOOOO *Screams and shouts* IT'S NOT RIPE, IT'S NOT HEALTHY, PLEASE WAIT A LITTLE LONGER BECAUSE THIS IS THE ONLY SUPPLY I'VE GOT!
Mano: KRITHIK I HAVENT EATEN IN 20 MINUTES, I NEED MY NUTRITION
*Mano clutches Krithiks bumcheeks and licks the bumhole and its surrounding crust

Bum Crust by =-O November 5, 2018

bumcaustic 

to absorb the warmth from a seat generated by another person's bum.

as i sat down on the toilet i experienced bumcaustic created by the previous occupant.
(bumcaustic is primarily experienced on public transport)

bumcaustic by david lazarus January 9, 2006

bum crust nibbler 

someone who nibbles on bum holes that are crusty. also a slang term for a gay boy

mikey: carl your a bum crust nibbler
carl : no ryan is a bum crust nibbler
ryan :no your both shirtlifters(gay boys)

bum crust nibbler by ryan tomo February 14, 2008

Bum Crust 

Efficacious remains after expelling dung from the anus, usually due to a lack of stripe swipe, but often due to ones neglect of erasing the mistake. Can lead to droopy drawers or bung prints.

This food tastes like BUM CRUST! Get it out of my face before I bung print all over you!

Bum Crust by Scahbonie October 13, 2003