A person whose suburban "success" lifestyle is built on multi-level scams of various types. These people are typically churchgoing, drive SUVs, vote for "family values" candidates, and seem to be clueless of the fact that they produce nothing of value to society - existing primarily as large suburban human parasites.
BEWARE of being invited to a "party" (not to be confuzed with a "partay") by the Amway Yuppie. It's not a real party. Instead, you will spend the evening warding off sales pitches.
"Who was that at the door, was it the Jehovahs Witnesses?"
"Naw, it was just some Amway Yuppie inviting us to a scamfest."