The story
From use in Kmart, where a flashing blue light was turned on to indicate a short-term discount.
Etymology from Wiktionary, CC BY-SA 4.0.
blue-light special
Today it means: A discount or bargain. Full definition →
Today it means: A discount or bargain. Full definition →
From use in Kmart, where a flashing blue light was turned on to indicate a short-term discount.
Etymology from Wiktionary, CC BY-SA 4.0.