Definitions
There is 1 meaning of the phrase
Idiot Light.
Idiot Light - as a noun
A colored warning light on an instrument panel (as for low oil pressure)
Example Sentences
"The idiot light on my car's dashboard started blinking, indicating a problem with the engine."
"Don't ignore the idiot light on your computer, it may be a warning of a hardware failure."
"I knew I needed to refuel when the idiot light for low fuel came on."
"The idiot light for the dishwasher flashed, reminding me to refill the detergent."
"The idiot light on the stove signaled that the oven had reached the desired temperature."