👉 Clunker, also known as a "clunker," is a type of car that has experienced a significant decrease in its fuel efficiency over time. The term originates from the phrase "cheaper to buy" and describes cars that are less reliable, have poor gas mileage, or lack essential features such as air conditioning or power windows. Clunker vehicles often have poor curb appeal and are considered by many to be outdated and unappealing to potential buyers.