Meredith Whitney, deemed the "Oracle of Wall Street" for successfully calling the financial crisis, says home prices are likely to fall substantially, and the reasons have to do with habits picked up by young guys.

"You have men staying single longer…and then you have what I call a growing crisis of the young American male…they're twice as likely to live at home than women. So one out of five young men live at home with their parents, and these aren't young men going to college and coming home for holiday breaks, these are young, grown men choosing to live at home," Whitney told CNBC this morning.