fast lane 
noun
1A lane of a motorway or dual carriageway for use by traffic that is overtaking or moving more quickly than the rest.Speeding should be left on the race track not the local high housing estate or the fast lane of the motorway....
- If there is someone slower than you already overtaking in the middle lane you move into the fast lane.
- One morning I saw a guy galloping down the fast lane of the motorway on a horse!
1.1A situation in which life is hectic or highly pressured: his face showed the strain of a life lived in the fast lane [as modifier]: a youth culture of fast-lane living
Phrases
life in the fast lane
- phototopographical
- phototopography
- phototoxic
- phototoxicity
- phototransduction
- phototransformation
- phototransient
- phototransistor
- phototrope
- phototroph
- phototrophic
- phototrophy
- phototropic
- phototropism
- phototropy
- phototube
- phototype
- phototypeset
- phototypesetter
- phototypesetting
- phototypic
- phototypist
- phototypographic
- phototypography
- phototypy