The term 'bumper flaw' refers to any damage or imperfection on a car's bumper. The crossword solutions for this term are DENT (4 letters), DING (4 letters), HONK (4 letters), and CHROME (6 letters). A DENT is a shallow depression in the surface of a car's bumper, while a DING is a small DENT or scratch. HONK is the sound made by a car's horn, which can be used to alert other drivers of a potential bumper flaw. Finally, chrome is a type of metal plating that is often used to cover a car's bumper, making it more resistant to dents and scratches.