The act of marking territory or items with urine or feces by homeless people.
Bryce didn't like that the car dealership used the empty lot that he slept in so he bum tagged all the new cars.
Human-like feces found on the sidewalks of urban regions. Typically in areas with an excessive amount of homeless folk.
I skateboarded over some bum poop today...and now my wheels are all crusty.
The act of eating ass.
"Dude, I've been bum snacking a lot the past days. No flex."
"You're a minor? Fuck off and come back once you can legally bum snack!"
When someone doesn't know it's actually called lip balm, they call it lip bum. Don't ask me why they do it, they just do.
Billy: Why do you wear lip bum?
Mel: IT'S LIP BALM YOU IDIOT.
When you fart while sitting down but instead of going out of your butt cheeks it goes back into your ass.
Bro, I farted in class today and I thought people were gonna hear it but it turned into a bum flum.
A gay proctologist, or bum doctor. Can also be used as a slang word used for insult
My mates dad is a 'Bum Sleuth', or, 'shut it you Bum Sleuth!'