fast lane noun
plural ∼ lanes 1 [count] : a section of a highway for cars that are traveling at high speeds
▪ I pulled into the fast lane to pass the truck. 2 [singular] : a way of living that makes you very busy or that is full of excitement and often danger — usually used in the phrase life in the fast lane ▪ He likes to live life in the fast lane, going from one wild party to the next.
▪ I pulled into the fast lane to pass the truck.
