So many websites online are offering diplomas now. Some websites are legit, while others are not even accredited. "Buying a degree" refers to purchasing a diploma. Basically you will just pay a website to send you a piece of paper saying that you have graduated or earned a certain degree. Some people sadly fall for this because websites can look so real and formal. Please if you are thinking of doing schooling online check around first and make sure that what ever school you choose is legitimate. You do not want to be one of the unlucky ones who fall for buying a degree.