A Yumpie is a "young upwardly-mobile person".
Yippie is sometimes used to refer to a person with hippie values and attire but with yuppy consumer habits.
Buppie is sometimes used to refer to a black (African-American) yuppie.
A guppie is a gay yuppie.
A yuppie slum refers to any neighborhood that is largely populated by a young well-off crowd, but often has other connotations of gentrification and rising rental and dining costs in a previously low-rent neighborhood.
DINKs (also DINKY in the UK) are well-off couples who often have much in common with "yuppies". The label is an acronym for Dual Income, No Kids [Yet].
Yuppicide is the killing of Yuppies, and vehicular yuppicide is the act of wrecking a yuppie's BMW.
Yuppie Flu is a term formerly applied to Chronic fatigue syndrome, before that condition's general acceptance as a genuine medical problem.
Organic Yuppies is a term used in the UK for yuppies and middle class thirtysomethings obsessed with food and wine.