fast lane
US /ˌfæst ˈleɪn/
UK /ˌfæst ˈleɪn/
1.
the part of a multi-lane road or highway that is used by vehicles traveling at the highest legal speed
:
•
He sped down the fast lane, eager to reach his destination.
•
Please keep to the right unless you are in the fast lane.
2.
a demanding and competitive way of life or career
:
•
After college, she jumped into the fast lane of corporate finance.
•
Living in the fast lane can be exciting but also stressful.