ass jeans 

A type of girl denim jeans or pants that are especially favorable for showing the perfect curves of a girl's buttocks, usually pocketless. They can only be worn by some.

"Dude, did you see that chick's ass?"
"Yeah, girls should wear ass jeans more often."

ass jeans by Battalion_Stallion January 31, 2008

ass jeans 

That one pair of jeans that makes you look in the mirror and say, "I'd tap that." Also known as the pair of jeans your butt looks best in.

"I went out today and bought a pair of Sevens... I think they might be my new ass jeans."

ass jeans by agentthirteen April 14, 2009

Salem Ass Jeans 

Jeans/denim that are no longer trendy at the moment, but they were in a previous cycle.

Similar to comparing the big city trends to the suburban trends, and how the suburbs are often one-step behind the more modern city trends (Portland, Oregon versus Salem, Oregon in this example).

Portland (circa 2014): Everyone wearing dark washed, selvedge denim.
Salem (circa 2014): Everyone wearing light washed, bootcut jeans with hammer loops.

When my friend Kevin moved to Portland from Salem, he lamented his current jeans situation: "I need to get some newer jeans for Portland, I got some Salem Ass Jeans right now."

Salem Ass Jeans by manjoseph January 21, 2022

jean ass 

When a pair of jeans are worn by a girl they create the perfect apple shaped ass, but when they are removed the ass no longer retains the shape and sags or becomes flabby looking.

man that girl has a nice ass....No that girl has jean ass, or she has a case of the jean ass

jean ass by Jeremy Diver January 1, 2009