North
America/US - A person who has little to no ambition to attempt to have as good a life as possible, i.
e an unemployed and lazy type person who may still live with others and having somewhat of a locust lifestyle. Also a term used for a homeless person/tramp.
"Dude what you gonna do when your boss fires you? Live on the streets like a bum!?"
British/UK term - the ass/buttocks/
butt is often referred to as a person's 'bum.'
US/North
America - "Sit your
butt down on that chair right there."
UK - "Sit on your bum on that chair right there."
Generally worldwide a bum is a term that's used to describe a typical douchebag, lazy and unambitious person.