1Attributive Chiefly humorous. Designating a (peripheral) design feature intended to give something (originally and chiefly a vehicle) the appearance of being capable of high speed, or (more generally) to give it a sporty appearance; especially in "go-faster stripes". Also in extended use: designating a feature or format intended to make something more attractive or engaging, typically on a superficial level.

2Attributive That causes or assists something (originally a car) to move or work more quickly; that moves or works more quickly than something otherwise comparable.