DR fishing question

I completely forgot about what I saw last week on the river. I was jigging the belle isle bridge area and there was a 14 foot aluminum boat with 4 people in it. Two with there arms hanging over the port side and two hanging over the starboard side. It looked like they each had line wrap around there hands, no poles, and they were jigging up and down. I don't remember if they were anchored or just drifting. What kind of fishing was this? I assume some form of chugging.