A flash sale is a limited-time promotional event where retailers offer significant discounts on products for a very short period, typically lasting anywhere from a few hours to a couple of days. These sales create urgency and excitement by featuring steep price reductions that encourage immediate purchases. The “flash” aspect refers to how quickly the sale appears and disappears, often with little advance notice. Flash sales are commonly used by both online and brick-and-mortar stores to clear inventory, attract new customers, boost short-term revenue, and create buzz around their brand.