KIPPERS (Kids In Parents' Pockets Eroding Retirement Savings) is a term to describe individuals in their late twenties or early thirties that are living in their parent's homes. They may or may not be earning an income. Similar terms include Parasite single and Boomerang Generation.
The term has been used by a variety of news groups such as BBC News and The Australian. One of the reasons for the existence of these individuals is rising housing prices.