Belonging to the class of bland, clean-cut, middle-of-the-road suburbanite breeders. The Cleavers from the old TV show "Leave It To Beaver" are a familiar archetype of whitebread culture. Compare to yuppie.

The term implies profound cultural naïvete, blind consumerism, and an unquestioning "follower" mindset. Common trappings of the whitebread lifestyle include golf, Kenny G and Enya CDs, SUVs, an irrational fixation on lawn care, Golden Retrievers, nominally Christian religious beliefs, Old Navy clothing, moderate to conservative political views, bad Chardonnay, equally bad espresso, cookie-cutter houses, Bath & Body Works hygiene products, and very white-collar employment.

Though whitebread individuals are usually white, the term is not necessarily racial in meaning - the implication lies more with the blandness, predictability, and banality of plain white bread. Accordingly, "wonderbread" is often used as a synonym.

A whitebread is a little white crackerjack who is not capable of any acts which display true niggerdom.

someone who is not white, for example a black person, who acts incredibly white or exhibits elements of white culture. Meaning "white breed" or more commonly known as white washed.

Those of the caucasian race who think they have rhythm, soul, game, basketball skills and large diznanks.
Diznank

White boy who is the shit at everything. He can get all the ladies, and can hoop it up like no other.