life in the fast lane meaning

• [American slang]
  a very active or possible risky way to live. (See also in the fast lane)
    Life in the fast lane is too much for me.

• fast lane:    Noun: fast laneA h ...
• in the fast lane:    [American slang]Fi ...
• live in the fast lane:    [American slang]Go ...

Examples

1. i'm just not cut out for this . life in the fast lane
2. life in the fast lane
3. this is a story of a group of drifters living life in the fast lane in the big cities of japan
4. I wouldn't know about life in the fast lane.
5. Life in the fast lane doesn't get much better.