Word Study
yuppy
CIDE DICTIONARY
yuppy, n. [young urban professional + -ie.].
an ambitious young adult, usually college-educated, living in or near a large city, with a professional career and an affluent lifestyle. The "u" in the word is sometimes interpreted as meaning “upwardly mobile”. [PJC]
OXFORD DICTIONARY
yuppy, n. (pl. -ies) colloq., usu. derog. a young middle-class professional person working in a city.
Etymology
young urban professional
For further exploring for "yuppy" in Webster Dictionary Online