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1.
A way to dress that mixes trash and class: Denim on the top and bottom.
Werd homesauce, that hydro worker is sporting some sick double denim.
by DaRoof Fiddler February 09, 2009
 
2.
When someone wears jeans AND a jean jacket and/or more articles of clothing made of 'jean'.
"Good God, look at that guy!"
"Yea, talk about double denim!"
by Nikki+Kristi March 30, 2006
 
3.
The act of wearing Denim Jeans accompanied by a classy Denim Jacket or Denim Button-Up Shirt. Usually done by math teachers who wear the ensemble exclusively on Fridays.
That kid is doing double denim Fridays.
by HYDKEKCDKD October 28, 2009