Definition: "Crest Jeans" is a type of denim jeans that has a distinctive, swooping or overlapping design on one side, similar to a feather. It was first introduced by the company Crest in 1950 and has since become popular among fashion enthusiasts. The term "Crest" refers to a kind of blue dye used for coloring jeans. The term is often used in reference to the process of dyeing fabric with a blue dye, which gives the color a distinctive appearance. It was also used as a slang term for "cheerfully" or "bravely." In terms of definition, "Crest Jeans" can be understood as a type of denim jeans that has a unique design on one side and is distinguished by its swooping shape, making it visually appealing. The term is often associated with the brand Crest, which was known for producing high-quality denim jeans in the 1950s.