"Bored with no one to talk to"
Here's a breakdown:
* Hasta aburrido: This literally means "until bored," but it implies feeling very bored.
* Con nadie: This means "with no one."
* Quien hablar: This is a relative clause meaning "to talk to."
More natural ways to say this in Spanish:
* Estoy aburrido y no tengo con quién hablar. (I'm bored and I have no one to talk to.)
* Me muero de aburrimiento, no hay nadie con quien conversar. (I'm dying of boredom, there's no one to talk to.)
* Estoy aburrido, me gustaría hablar con alguien. (I'm bored, I would like to talk to someone.)