Mucky bum is the result of passing copious amounts of excrement and having it stick to unusually long anal hair.
I have a bit of a mucky bum this morning dude.
When a group of British men bum you til you break.
Bumped into those British blokes last night, they gave me a proper broken British bumming
when a woman's leggings are wedged into her buttocks, similar to a camel toe but with the bum.
Look at her camel bum! Its huge! Yoga pants are AWESOME!!!
A lazy non workin person who does nothing but feen on stuff with no money. Who sleeps around with any std smelling female, and can't even take a lady out on a date.
Yo!, look theres dat "playa bum" over there feenin on some weed and ass!
When you eat regular food and it makes you sick because you are temperamental. It can even make you bleed out the bum for no apparent reason. Regular people can eat the same thing and be fine.
I ate dinner last night, nothing out of the ordinary, and it gave me Gurdy Bum, I have no idea why, its so grosse and hurts. Why isn't anyone else sick today??
The result of a hard day of defecation, or the consumption of sunflower seeds shell and all.
Will: Dude I just ate a whole bag of sunflower seeds!
Dawson: Did you eat the shells too?
Will: Of course!
Dawson: You better get ready for some heavy bum bleed.