Here are the possible solutions for out like a light clue
Answer
Clue
Relevancy
othello
Clue
"Put out the light, and then put out the light" speaker
glorybeam
Clue
"The light" of "I saw the light!"?
laser
Clue
Light in a light show
Light-show light
Light show light
Light in a light show, perhaps
Definition
a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium
