Related Clues:

• Stayed put
• Loafed around
• Wasn't active
• Didn't work
• Let the motor run
• Took a neutral stance?
• Vegged out
• 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