Someone who is boring and uninteresting to talk to but blaming you for their boredom when they are the ones who initiated the conversation.
Friend 2:Hey,just got back from a party!It was awesome!What about you?
Friend:Oh,nothing much.Just bored.
Friend 2:Ah,okay.(What a borewhore.)
'Dude,is she always like that?I wasted 5 minutes talking to her about nothing!'
'Ah,what do you expect?She's a borewhore.'