Just launched! Learn slang while watching funny vids: urbandictionary.tv
1. a bum
a person who never has there own stuff and is always borowing from others
Josh is a bum he always smokes are shit but never pays.
2. A Bum
Someone who is annoying, or for some reason makes life difficult for you.
Someone Who Makes You Put Everything In A Bloody Sharing Folder is a Bum