The phrase refers to attire replicating the iconic looks of the titular characters from the “Bill & Ted” film series, typically worn during the Halloween season or at costume parties. Examples would include recreations of Bill S. Preston, Esq.’s, signature vest and t-shirt combination, or Ted “Theodore” Logan’s distinctive band t-shirts and shorts.
These recognizable outfits offer a readily identifiable and often humorous option for individuals seeking themed apparel. The enduring popularity of the films provides a level of instant recognition, contributing to the success of such ensembles. Furthermore, the relative simplicity of replicating the characters’ wardrobes allows for cost-effective implementation.