Definition Any professional–doctor, lawyer, CPA, etc—member of the upper middle class or upper class who is in his/her 20s to 40s.
The term YUPpie first appeared in the 1980s, along with YUMPie—young, upwardly-mobile professional. Because the latter sounded kinda goofy, it died on the vine.
Synonyms Young—Upwardly Mobile
Professional, Young Urban Professional
Reference http://en.wikipedia.org/ wiki/Yuppie