I have a similar question. Where the heck is the "Transfer Money" option when you log in for transferring your BB money to your bank account?
From the BB FAQ page:
How do I transfer money out of my Bluebird Account?
You can transfer money only to your linked checking or savings account, but not to a debit card. Just log into your Bluebird Account, click on the Transfer Money link, and follow the instruction from there. It typically takes approximately 2-3 business days.
There are no cash back or cash over transactions with Bluebird.