In my readings on direct marketing, I've discoverd a growing list of lifestyle terms that identify particular segments of the population.

Here are some samples.

Dinks: Dual income, no kids
Biddies: Baby boomers in debt
Skippies: Schoolkids with income and purchasing power.
Guppies: Gay upwardly mobile professionals
Maffies: Middle-aged affluent folks.
Mossies: Middle-aged, over-stressed, semi-affluent professionals.
Dimps: Dual-income with money problems.
Woopies: Well-off older persons.
Yuppies: Young urban professionals. (duh)

Source: IMC: Using Advetising and Promotion to Build Brands, Duncan,