to bum is to really love or be obsessed with something. if you bum something to a certain extent, its said to bum it blue. there are also different levels of bummage.
is used wen u really like something>>
NOT A PERSON THOUGH just other stuff>> originates from liking something so much that you want to have sex with it,you can say you bum it or you bone it !!!!
o my god i totally bum this song
not o i totally bum that guy
o my god i totally bone that band