The act of wearing a very out of place article of clothing. This can pertain to wearing shorts in January, or a Versacci suit in a Wal-Mart.
The origin of the word either pertains to a member of the Catholic church wearing his crazy robes in secular public, or a kid named Nick Bishop, who wears Hawaiian shirts all year long. In Vermont.
Synonymous with Pullin' a Bishop, Pulling a B, Bishopping, or Shopping B's.
Use of phrase: Hey, you see the girl with the cowboy hat? Yeah, she's definitely pulling a bishop.