dummy light
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
Synonym of idiot light (“warning light”).
Register: slang
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
A type of stop light (traffic light) set in the middle of the intersection, and not at the sides, corners or above (thus forming a crash hazard). These lights are placed similarly to how traffic police platforms are set dead center of intersections.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “dummy light” mean?
Synonym of idiot light (“warning light”).
Is “dummy light” formal or informal?
dummy light is generally slang.