Bum Crumble 

Where shit drys in your ass after its been improperly wiped and when you scratch your ass it falls out like dust and it gets all over the place.

you fuckin arse you left bum crumble all over th toilet seat.

Bum Crumble by Eliott Johnson June 22, 2007

Bum Crumble 

To administer a royal bumming...To open a can of whoopass on one's friend/nemesis/child...To give someone a jolly good thrashing at something, e.g. a computer game, or contact sport such as killing.

"You'd better not be trying to overtake me adey. I am the king of rollcage and I shall be making bum crumble if you aren't careful. you assmunch."

"Put that child down adey, you can't bring him with you or you'll get a fresh serving of bum crumble from that police officer"

Bum Crumble by Mighty O May 14, 2008

Bum crumble 

Bum crumble

A vigorous post-movement wipe following a particularly high-liquid content when coupled with cheap toilet paper peppered the seat with a light dusting of bum crumble - Alex aghast made his exit from the stall and returned to his desk, feeling still the warming reverberations on his cleftal horizon as a gentle reminder of his overzealous wiping.

Bum crumble by Fair_dinkum July 19, 2019

bumcrumble 

like bumcheese but a few days older

Mum picked up John's pants from his bedroom floor and shook them free of BumCrumble

bumcrumble by Mark November 10, 2003

bumrumbler 

A man with a predeliction for giving penetrative anal sex. Used more commonly in reference to homosexual tops.

Watch out for that bloke, unless you want your kidneys lifted - he's a bumrumbler!

bumrumbler by indefensible January 18, 2005

Bumgrumbler 

When a person complains about diarrhoea , constipation or haemorrhoids

I am sick of John coming to work and talking about his runny bum one day and piles the next, he is such a Bumgrumbler !

Bumgrumbler by Mr B Poet August 11, 2016