"Poking the Sleeping Bag" is a phrase used to describe the act of persistently probing someone for information, especially when they have made it clear that the topic is off-limits or confidential. Its often a really annoyingthing to do to someone.
Jake: Yo Davey, what do you do for work bro?
Davey: Can't tell bro, my boss said i should keep it a secret
Jake: What do you mean? What do you do for work man?
Davey: I just told you why! don't start Poking the sleeping bag!
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi