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Runner's Bum

The phrase used to describe running whilst needing to excrete one's bowls, the sufferer then has 2 choices:
- clench their arse and hope for the best
- shit their pants
"Paula Radcliffe shit herself in the marathon", "oh yeah we've all had runner's bum"
by Mahoganay October 12, 2013
mugGet the Runner's Bummug.

bum business

Doing someone up the bum so hard that they can't stand afterwards from the shock of the bum business
I did the bum business so hard last night she face planted the floor afterwards
by Smurf&ducky July 31, 2017
mugGet the bum businessmug.

bum brigade

A large number of people of the homeless persuasion gathering together in one place. They can usually be seen massing by bridges or wherever there are cardboard boxes to be found. Usually travelling in packs, when you see one member of this brigade you can usually find the rest. Markings include layers upon layers of winter coats, which aid in escape when confronted by predators by creating a mass of confusion, much like zebra stripes.
Some guy: Dude, I saw a trail of winter coats leading down to your block from the train! What the hell happened?

Some other guy: O that's nothing, the bum brigade was passing through. I think they migrated.
by kAte the great ! December 20, 2007
mugGet the bum brigademug.

Bum switch

The possibility to turn off your ass when you need a shit in class
Olivia needed a big smelly shit in class but wasn’t aloud to go so she used her bum switch
by Grace is awesome June 2, 2021
mugGet the Bum switchmug.

bum bucket

an affectionate name you would call someone when you're annoyed but not genuinely angry with them; a nicer version of asshole
You watched Lost without me? You bum bucket!
by Devanelle September 25, 2016
mugGet the bum bucketmug.

Bum Shark

When your friend pays too much attention to your arse; they're a bum shark.
(Playing Call of Duty) Hey Logan why are you swimming so close behind me in the water? Are you a bum shark?
by Team Leader Joseph November 4, 2018
mugGet the Bum Sharkmug.

Wee bum

A condition in which your asshole discharges frequently in a liquid form. Commonly occurs when you eat off the streets in Bali.
Oh shit Roy, I’ve me the case of wee bum
by Bucking boom boom February 1, 2020
mugGet the Wee bummug.

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