What does it mean if one endorses a co-signer?

Good rule of thumb.....never co-sign for let someone use your name to get credit. The creditors usually ask for co-signers and endorsers because they KNOW the person either won't or can't repay the loan and that leaves the other parties responsible. Even if the person files bancruptcy, the collectors can go after the co-signer. An endorser is next in line.