can be pronounced bolf
this refers to Bitch Others'd Like to Fuck
this pretty much means a mean girl with a bad personality, but she's attractive and/or popular, therefore she makes people want to sleep with her.
Or, it can be any random girl that may or may not be attractive and have a good personality, but people want to sleep with her anyway just because they're horny and she's there.
1. Man, that girl Jenna is so mean to people she doesn't even know. Her personality is just jank!
I'd still fuck her, though! She's hot! Definately a B.O.L.F.
2. Last night, he was so drunk that he totally had sex with that B.O.L.F. just because she was drunk, too! Any regrets, I wonder?