1. old cars or machines that are in poor condition and make loud noises when operating
Usage: informal; plural of clunker
2. things that are complete failures or work very poorly
Usage: informal; plural of clunker

Examples

• The used car lot was full of old clunkers that barely ran.
• My grandfather kept two clunkers in his garage that he was always trying to fix.
• The movie studio released several clunkers last year that lost money.
• Those old computers are real clunkers compared to modern laptops.
• The mechanic specializes in fixing clunkers and getting them road-worthy again.
• After three clunkers in a row, the director finally made a successful film.