Dodge's has always called them jojos. I remember because when I moved to MS in the early 90's, I had never heard that stupid word in my life other than as a name. I knew a kid in first grade that ate dog food named JoJo. So it's always reminded me of stupid. Most of the world will call them potato wedges.Odd, I've never heard of a potato wedge or "log" referred to as a jojo in my life.

As the resident tater expert, frequent visitor to Oregon where the jojo was invented and is everywhere to this day, and 2 time visitor to the potato museum in Blackfoot Idaho.... Here's the final word. Its a jojo if it's cut length wise, battered, and fried in a pressure frier. If it's cut across the width of the tater it's a potato wedge. If it's cut length wise battered and fried in a regular frier or any other way, it's a tater log or potato log for you fancy 17ers.
Pressure frier = jojo. Most gas stations are probably going to pressure fry their chicken.