Related Clues:

• Let the motor run
• Took a neutral stance?
• Vegged out
• Just sat there
• Hung around idly
• Dogged it
• Sat at a red light, e.g.
• Waited for the light to turn green
• Sat at a light
• Kept the engine running
• Just sat around
• Ran in park
• Ran in place
• Did naught
• Just hung around