When you 'bum' something or someone this means you tend to become obsessed with the thing you bum. It means when you like something/someone a little too much.
Girl: Ahh i hate shirley she well bums fall out boy.
Australians that vape, go out, drink, party, wannabe gangstas. Bums can be defined as brown people who go to garden city in South-East Queensland (Australia). Another definition for bums can be brown, islanders that do drugs or just vape and drink.
"You're a bum, lad" "Nah, f**k off!" "All of you guys are bums!"