Streetfights

So tonight’s announcement of the Roode Vs Storm Streetfight got me thinking, what is the difference between a Streetfight and a regular No Holds Barred, No DQ match??  I seem to remember an old NWA show saying that a Streetfight allowed you to wear anything you wanted, but nowadays there seems no distinction. 

It used to be that you'd dress in your jeans and bring weapons, like Shawn did at Summerslam 2002.  That's pretty much died off in the PG era.  Although really, wrestlers wear tights because that's the best thing to wear for the sake of movement, so you'd think that wearing jeans would be counterproductive.