The phrase "bubble bursts" means that something that was growing or expanding suddenly collapses or fails. It often refers to financial markets or businesses that were doing well but then suddenly experience a decline or crash. Full definition
Why did virtually all the big banks get off after the housing bubble burst in 2008? (timeout.com)
Why did all the big bankers get off after the housing bubble burst in 2008? (timeout.com)
But if you bought more stocks after the dot - com bubble burst in early 2000 you may have seen them fall again in 2001, and even further in 2002. (moneysense.ca)