Lights on the dashboard of a car indicating an action must be taken for continual operation of the vehicle; most commonly the low gas light.
Oh man, I need to get gas because the idiot light just came on.
a light used to announce a malfunction in a system, especially in a automobile
That idiot light goes on over the smallest things.
A derisive term for warning lights in a car dashboard or any similar arrangement in a vehicle's cockpit. So called because they light up when the operator is being an idiot and letting something go wrong.
Check Engine, Oil Pressure, Battery...all idiot lights that won't switch off. I need a new car.
The green coloured indicator on a motorcycle. Which informs the rider, they are in the "Neutral" gear, when lit.
"Dude...Why's my bike not moving?"
"Of COURSE it's not moving, STUPID! Your 'idiot light' is on!"
On a moving vehicle, an unused turn signal.
That guy's been driving with his idiot light on for 6 blocks.
When you have a stick shift car and the little light on the dash comes on. Idiot light
Jay is driving down the road and the idiot light comes on, Shift idiot!